Our favorite cruise was on the <i>Explorer of the Seas</i>,   --> italicize the name of a ship
which we read about in <cite>Cruising</cite> magazine,        --> reference the name of a publication
and we <em>loved</em> it.                                     --> emphasize a feeling

(<b>Note:</b> This was before everyone got all sick           --> start a note with bolded text
and was throwing up <strong>everywhere</strong>.)             --> make a strong statement