Seeing the guy I'm in love with for the first time tonight!advice please!?

He and I are going to a movie with my bestfriend karley and his best friend Addison(they are dating) and a few other people and I really want to let him know how much I love him without being slutty(he's my boyfriend and he has said I love you to me a lot)... I want a kiss but es never kissed anyone and I have... It's his first date ever, not mine, but it is our first together