How to kiss properly for the first time?

Hey guys i'm 17 but i'm on my first boyfriend,i just havent really found anyone as good as my current partner.We've been out as friends but we both decided we want more.I'm fine with that it's just that i havent kissed a guy before and to be honest i'm not sure what to do.I mean a proper kiss here,do you close your eyes,what do you do with your tongue? Please help! Thanks,Mandy