to kiss your GF, no need of knowing others experiences..Just go and ask your girl friend " how would you want me to kiss you?"..she will give you the best answer....
I think that there are no tutorials for the kisses. It would be better to have some masterclass in kissing. I remember my first kiss and it was terrible....!
Oops op needs advices to kiss his gf...such feelings grow automatically dude. If you really love her then you don't need to take advices from others.
The most important thing is to kiss here. After that try different angles and methods ... this is for not getting bored.