Ummm kissing tips i guess?

this is sorta embarrassing lol... so anyways.. ima be going to the movies with my boyfriend on valentines day, and he said he wants us to kiss o.0 it will be our first kiss together... and i havent kissed someone in a LONG time so idk how anymore. like wat if my nose is to big and i mess up? xD im like super worried cuz idk how to kiss anymore and i have to be the first one to make the move (cuz my friend is daring me to) >.< so yeaaaa... tips or wateve plz? :o