Magic sentences that help you with girls. They don't exist, even magic wallets don't help. "I love you" doesn't always cut it either. Something that I have noticed about most girls is that they can be VERY stubborn. My girlfriend is, and I have to deal with it. Be nice to her, and tell her the truth. If she doesn't bring up the subject of the whole thing that happened and she seems fine, then it might be best to avoid it.

Gifts can also help and hurt. She could be like "AWW! That is so sweet of you! Thank you! *hug*" or she could be like "You think this makes it all better!!!!!"

Basically all of this depends on the girl. If you know her well enough you should know what to do.

This is all hypothetical of course