Information Links:
15 – http://www.speeli.com/articles/view/Why-do-people-touch-their-eyebrows-while-speaking
http://visihow.com/Tell_by_a_Man%27s_Body_Language_if_He_Likes_You
14 – http://www.scienceofpeople.com/2013/07/body-language-of-attraction/
https://www.bustle.com/articles/172588-9-weird-ways-to-know-someone-likes-you-more-than-you-think
13 – http://www.speeli.com/articles/view/Body-language-of-the-back
http://www.wikihow.com/Tell-if-Your-Best-Guy-Friend-Likes-You
12 – http://www.scienceofpeople.com/2013/06/female-body-language/
http://www.menshealth.co.uk/sex/please-woman/is-she-interested-65161
11 – https://www.psychologytoday.com/blog/the-attraction-doctor/201603/why-is-it-so-hard-tell-if-someone-likes-you
https://www.bustle.com/articles/172588-9-weird-ways-to-know-someone-likes-you-more-than-you-think
https://www.psychologytoday.com/blog/let-their-words-do-the-talking/201607/5-ways-tell-someone-likes-you
10 – http://www.wikihow.com/Figure-Out-if-Someone-Likes-You
http://sitn.hms.harvard.edu/flash/2017/love-actually-science-behind-lust-attraction-companionship/
http://www.cosmopolitan.com/sex-love/advice/a3092/strange-boyfriend-behavior-0105/
9 – http://www.valleymorningstar.com/sie/what_do_you_think/article_948c1b32-8940-573f-9994-be08ade6d4b9.html
http://www.speeli.com/articles/view/Signs-that-show-that-someone-likes-you
8 – https://www.psychologytoday.com/blog/let-their-words-do-the-talking/201607/5-ways-tell-someone-likes-you
http://www.bio.psy.ruhr-uni-bochum.de/papers/Oxytocin_males_females.pdf
7 – https://www.bustle.com/articles/172588-9-weird-ways-to-know-someone-likes-you-more-than-you-think
https://www.youtube.com/watch?v=1XJ-0zU06Mc
6 – https://www.bustle.com/articles/172588-9-weird-ways-to-know-someone-likes-you-more-than-you-think
https://blogs.scientificamerican.com/guest-blog/learning-the-look-of-love-that-sly-come-hither-stare/
https://www.psychologytoday.com/blog/let-their-words-do-the-talking/201607/5-ways-tell-someone-likes-you
5 – https://www.bustle.com/articles/150983-6-ways-to-tell-if-someone-is-into-you-according-to-science
https://www.psychologytoday.com/blog/let-their-words-do-the-talking/201607/5-ways-tell-someone-likes-you
4 – http://visihow.com/Tell_by_a_Man%27s_Body_Language_if_He_Likes_You
https://www.bustle.com/articles/172588-9-weird-ways-to-know-someone-likes-you-more-than-you-think
https://www.ncbi.nlm.nih.gov/pubmed/18453390
3 – https://www.bustle.com/articles/150983-6-ways-to-tell-if-someone-is-into-you-according-to-science
http://www.livescience.com/22120-eyes-reveal-sexual-orientation.html
http://www.enkiverywell.com/dilated-pupils-attraction.html
2 – http://www.speeli.com/articles/view/Signs-that-show-that-someone-likes-you
http://visihow.com/How_to_ask_a_guy_if_he_has_a_girlfriend
http://www.hercampus.com/love/dating/6-things-you-should-never-say-your-crush
1 – http://www.womenshealthmag.com/life/meaning-of-a-smile
http://dating.lovetoknow.com/Signs_of_Flirting
http://www.livestrong.com/article/135376-signs-that-woman-likes-man/

Image Links:
Intro-
https://unsplash.com/search/photos/eyes?photo=_H4iwsvqKMI
https://unsplash.com/search/photos/feet?photo=lAB1aswd_rg
https://unsplash.com/search/photos/girl?photo=TS2UKluECVE

15 – https://upload.wikimedia.org/wikipedia/commons/thumb/b/b9/Ethan_Hawke_66%C3%A8me_Festival_de_Venise_%28Mostra%29_8.jpg/1024px-Ethan_Hawke_66%C3%A8me_Festival_de_Venise_%28Mostra%29_8.jpg
https://unsplash.com/search/photos/eyebrows?photo=ZcczBXrkXgA
https://unsplash.com/search/photos/eyebrows?photo=cGqg8Bx2Kbw
https://unsplash.com/search/photos/eyebrows?photo=BoxcOWIhuGk

14 – https://pixabay.com/p-2138928/?no_redirect
https://unsplash.com/search/photos/woman?photo=IcypwC_7QrU
https://www.videoblocks.com/video/too-positive-afro-american-man-toothy-smiles-and-looks-right-at-camera-on-urban-background-b0l3mbtyeiupyewcq/
https://unsplash.com/search/photos/feet?photo=lmG6k_Vfop4

13 – https://commons.wikimedia.org/wiki/File:1954_Man_and_Woman_Pose_by_the_Pool.jpg
https://unsplash.com/search/photos/men?photo=r00I5F9pDzw
https://pixabay.com/en/naked-upper-body-fit-lifestyle-1847866/

12 – https://pixabay.com/p-828848/?no_redirect
https://unsplash.com/search/photos/wrist?photo=Ig2EmjUgrYw
https://unsplash.com/search/photos/wrist?photo=C9sZDSCGikM
https://www.videoblocks.com/video/beautiful-african-american-woman-qsuatfo/

11 – http://maxpixel.freegreatpicture.com/Boyfriends-Boy-And-Girl-Love-Couple-Spouses-2206294
https://unsplash.com/search/photos/holding-hands?photo=-d5FyZOBadU
https://pixabay.com/en/sisters-girl-girls-sea-woman-1328070/
https://www.videoblocks.com/video/couple-using-cellphones-and-talking-in-the-garden-steadycam-shot-etjnoqb/
https://www.videoblocks.com/video/couple-holding-hands-on-the-beach-peyqwnv/

10 – https://www.flickr.com/photos/frenkieb/39310285
https://pixabay.com/en/man-crazy-funny-dude-sunglasses-540500/
https://pixabay.com/en/man-strange-male-funny-face-794514/
https://unsplash.com/photos/8lrNAqiBpUQ
https://www.pexels.com/photo/clown-fear-horror-3363/

9 – https://www.flickr.com/photos/lorenkerns/15879968950
https://www.videoblocks.com/video/group-of-young-people-bdxjifleeip5ifqxu/

8 – https://pixabay.com/en/interview-job-icon-job-interview-1018333/
https://www.videoblocks.com/video/argentina-senior-couple-sit-in-chairs-bwm-bhcswj5d1ciyk/
https://www.pexels.com/photo/bread-food-restaurant-people-5249/
https://pixabay.com/en/table-dining-table-board-1930862/

7 – https://commons.wikimedia.org/wiki/File:Members_of_the_press_raise_their_hands_to_ask_questions_as_Secretary_of_Defense_Leon_E._Panetta_and_General_Martin_Dempsey.jpg
https://www.shutterstock.com/image-photo/question-marks-businessman-on-dark-vintage-589360823?src=XXa6kUDL4BHb3TYfN3z9GA-1-0
https://www.shutterstock.com/image-photo/close-womans-head-there-little-black-526062037?src=XXa6kUDL4BHb3TYfN3z9GA-1-29
https://www.shutterstock.com/image-photo/young-businesswoman-sitting-table-saying-no-261425291?src=QYINdA3hY7KsLKHqTq4zmA-1-43

6 – https://www.flickr.com/photos/chillmimi/14409450783
https://www.shutterstock.com/image-photo/portrait-beautiful-pensive-caucasian-teenage-girl-692145844?src=bHrDUFnLctrWPoSRw3ZDwg-1-83
https://www.shutterstock.com/image-photo/fashionable-young-couple-posing-eyeglasses-sunglasses-668036611?src=bHrDUFnLctrWPoSRw3ZDwg-1-27
https://unsplash.com/search/photos/eyes?photo=SmGBNMCxwlU
https://unsplash.com/search/photos/eyes?photo=wFng4C9obEc
5 – https://www.flickr.com/photos/urbanprose/30064035472
  https://unsplash.com/search/photos/talking?photo=q3FihXQ-13M
https://unsplash.com/search/photos/talking?photo=-Xv7k95vOFA
https://unsplash.com/search/photos/talking?photo=ltqqK5I6sLw

4 – https://commons.wikimedia.org/wiki/File:Kitten_and_partial_reflection_in_mirror.jpg
https://unsplash.com/search/photos/talking?photo=6bKpHAun4d8
https://unsplash.com/search/photos/talking?photo=-bEZ_OfWu3Y
https://unsplash.com/search/photos/talking?photo=Y9nzl9tA3Lw
https://unsplash.com/search/photos/talking?photo=610U5teI5B4

3 – https://commons.wikimedia.org/wiki/File:Dilated_pupils_2006_(cropped).jpg
https://www.pexels.com/photo/grayscale-photo-of-human-eye-120271/
https://www.pexels.com/photo/close-up-of-human-eye-326536/
https://www.pexels.com/photo/adult-amsterdam-business-cafeteria-509807/

2 – https://commons.wikimedia.org/wiki/File:Two_young_people_demonstrating_a_lively_conversation.jpg
https://www.videoblocks.com/video/couple-talking-on-a-park-bench-2-13aijbi/
https://www.videoblocks.com/video/young-couple-relaxing-on-sunbed-and-talking-nfwbxge/
https://www.videoblocks.com/video/couple-talking-and-drinking-in-swimming-pool-steadycam-shot-unm7s3j/
https://www.videoblocks.com/video/young-couple-with-bottle-of-wine-standing-on-street-in-the-evening-knwsmis/

1 – https://commons.wikimedia.org/wiki/File:Smiling_Men.jpg
https://unsplash.com/search/photos/smile?photo=jMd3WS9LBcc
https://unsplash.com/search/photos/smile?photo=9UVmlIb0wJU
https://unsplash.com/search/photos/smile?photo=sFw_aPH8D18
https://unsplash.com/search/photos/love?photo=GKP1N6nkuV8

outro-
https://unsplash.com/search/photos/grumpy?photo=AVRxWIsK9Jk
https://unsplash.com/search/photos/love?photo=91MrBMtCYn4