Suck on her tongue.
Gently nibble on her bottom lip.
Don't be afraid to look her in the eye (beforehand, once initiated it is best to keep your eyes closed)
Kissing on the neck and collar bone is appreciated as well.
Don't overdo it - be relaxed and calm so none of that bumping-foreheads-oh-shit-I'm-not-getting-any-tonight-where's-the-dog-and-jar-of-peanut-butter bullshit doesn't happen.