Will this is your opportunity okay? You can't mess this up. I'm pretty sure this is kind of a date. Maybe he wants to make sure you actually are interested and you're not just confused. Just be nice and yourself. Compliment the food (hahaha if only you knew) but don't over do it. Remember it's okay to be shy. Laugh at little jests, dress nicely, have fun! If he tries to kiss you let him! Don't be afraid to joke around too just make sure it's not something rude. I know you'll be fine. If he asks you about your feelings then tell him the truth otherwise I wouldn't full out admit it. Also, don't fall too much in love with him. He might surprise you in a bad way later.