Below is a list of food that you shouldn't eat on a date unless you like awkward moments:
Ribs - The sauce on this food item gets everywhere: your fingers, your mouth, your napkin, your shirt. Just stay away. Unless you like looking like a vampire.
Mexican Hot Dogs - According to a friend of mine, Mexican hot dogs are topped with all sorts of delicious goodness. However, they're messy. Extremely messy. As I stated before, messy foods are not graceful.
(see what I mean?)
Corn on the Cob - The corn bits and stringy stuff get stuck in your teeth, which makes for awkward smiling afterwards. No one likes smiling (or kissing) with crap in their teeth.
Popsicles - You have to be careful with these because if you eat them too suggestively, you might give your date the wrong idea. That could get really awkward. This goes for all other similarly-shaped items (like hot dogs and bananas). Just be careful with them...
(monkeys.)
Sources:
Mexican hot dog photo found here
Monkey photo found here