Thiss time i need major help.?

Me & this guy are going on a date to the movies, it may seem like no big deal but its my first date! What should I wear too look Skinner? How should I do my hair? What conversations should we have? What shoes? I'm 5'1 & 1/2, medium hair, chubby I'm 14. Can you answer my questions & give me advice on what to do (ps; I don't know how to kiss I've never kissed anyone any advice on that?)