Most Helpful Girl
CLOSED mouth for the first few seconds. Like go in with lips slightly parted, slowly kiss once, then again, then slower a third time and then try your luck with tongue. Make sure it feels like she's into it after three kisses before trying tongue through.
And not full-on open-mouth tongue-all-the-way-out tongue, just the tip against her lip, if she doesn't open her mouth or get her tongue out too then just stick with one or two more closed mouth kisses and then stop.
If she does get into the tongue kissing then the rest you just have to figure out on your own. Do what feels right and natural. No one can teach you this part lol, but I'll tell you it's way easier that it sounds, once it happens instinct just takes over :)
Most Helpful Guy
Go 90% of the way to her, then let her go the last 10%. If she's shy, you may have to go the whole 100%. Chew a piece of gum so you don't have bad breath. Hopefully it'll be the first of many! Good luck brother!