Some compose mappings for emoticons etc.

# Mnemomic: ‹f›ace.
#
# Mnemonic: ‹s›mile
<Multi_key> <f> <s> : "☺" U263A # WHITE SMILING FACE
# Mnemonic: ‹n›eutral
<Multi_key> <f> <n> : "😐" # NEUTRAL FACE
<Multi_key> <f> <f> : "☹" U2639 # WHITE FROWNING FACE
<Multi_key> <f> <w> : "😉" # WINKING FACE
<Multi_key> <f> <g> : "😀" # GRINNING FACE
# Mnemonic: ‹h›appy
<Multi_key> <f> <h> : "😁" # GRINNING FACE WITH SMILING EYES
<Multi_key> <f> <t> : "😛" # FACE WITH STUCK-OUT TONGUE
<Multi_key> <f> <p> : "😜" # FACE WITH STUCK-OUT TONGUE AND WINKING EYE
<Multi_key> <f> <c> : "😕" # CONFUSED FACE
# Mnemonic: ‹t›ears.
<Multi_key> <f> <t> : "😂" # FACE WITH TEARS OF JOY
# Mnemonic: ‹c›rying
<Multi_key> <f> <space> <c> : "😢" # CRYING FACE
# Mnemonic: ‹e›mbrace
<Multi_key> <f> <e> : "🤗" # Hugging face
<Multi_key> <f> <r> : "🙄" # Eye roll

# Mnemonic: ‹e›motion/‹e›moticon.
#
# Mnemonic: ‹p›alm.
<Multi_key> <e> <p> : "🤦‍♂️" # Man facepalming
<Multi_key> <e> <s> : "🤷‍♂️" # Man shrugging

# Emoticons/gestures using the hands.
#
<Multi_key> <h> <c> : "👏" # CLAPPING HANDS SIGN
<Multi_key> <h> <t> : "👍" # THUMBS UP SIGN
<Multi_key> <h> <w> : "👋" # WAVING HAND SIGN
# Mnemonic: ‹f›olded hands.
<Multi_key> <h> <f> : "🙏" # PERSON WITH FOLDED HANDS
<Multi_key> <h> <o> : "👌" # OK HAND SIGN
# Mnemonic: “x” as in a cross, since “c” is taken.
<Multi_key> <h> <x> : "🤞" # Hand with Index and Middle Fingers Crossed
# Victory gesture, or peace gesture.
# Mnemonic: ‹v›ictory
<Multi_key> <h> <v> : "✌" # VICTORY HAND
# “Fuck you” gesture.
# Mnemonic: ‹m›iddle finger
<Multi_key> <h> <m> : "🖕" # REVERSED HAND WITH MIDDLE FINGER EXTENDED