What kind of foods should I serve at a party?

Usually I never host but I want to now. My best friend usually has get togethers at her place. I feel like it is my turn. I am wondering what foods I should have? Her bf usually BBQS but, I dont....lol. It is an adult party meaning alcohol will be served and no children present. I am thinking fruit trays etc. but I want to serve more. Any ideas? Any appetizer/main courses/snacks or alchol drink recipe ideas? Thanks!