1st date ever

Hello everyone, so here's the matter , i knew a guy from an app for like 8 months and we really like each other so much , and now we decided to see each other face to face , i am going with him for our first date together after a week from now , it's my first date ever, so am freaking out cuz I don't know what to do and what to say ,how should i look like , please help me by throwing some advices and tips , am 22 BTW (if that helps) thanks a lot 💕😅