Help! Eating on a first date!

This may sound super stupid for some people but I can't ever eat on first dates, or when I first meet anyone. I get super nervous and just can't down the food. I've been on other dates where I take two or three bites of my plate and can't keep eating. Then I feel super bad bc they end up paying for my three bites. Lol. How can I actually eat???? I'm going on a first date in an hour!