Help your potential matches find common interests.
Books: I tend to favor geeky computer/gaming/science magazines and
text books, if those count as books, per se.
Movies: I don't always watch movies, but when I do, I tend to watch
SciFi/fantasy (Star Wars or some superhero movie) or quirky
comedies (Spaceballs, Airplane!, Monty Python, etc)
TV: I like Star Trek and tend to enjoy Science shows (Mythbusters,
How It's Made), and various comedies, usually animated (South Park,
Simpsons, Family Guy, so on)
Music: Usually, I go for Rock, Alternative, and Metal to various
degrees. If you're curious about specifics, just ask.
Food: Oh this one is easy. Sushi, hands down, especially anything
with eel in it. It's fucking delicious. When it comes to sweets, if
it has dark chocolate in it, then I'm there. It kicks milk