Boyfriend

So I haven’t had my first kiss yet but I really want my bf to be my first kiss but over text he keeps saying he wants to kiss me but never does. I wouldn’t be his first kiss so he knows what to do and I don’t that’s why I want home to do it first but at this point even though I don’t know how to kiss him and make it good should I just do it first. If I do do it first any tips? Also any tips if I were to kiss him first for me I am taller than him.