Another innocent question I answered, asked by a girl on Yahoo! Answers: When people French kiss does the girl put the tongue in the mouth our the guy

The simple answer is that you both do. Here’s some tips from a guy who’s been kissing girls for about 10 years ;-) Never put your tongue inside his mouth immediately. Instead use it to lick his lips a bit. Start with his upper lip and move to his lower lip. Use your lips to kiss his lips and his chin and his cheeks and move around his mouth a bit. After a while stick you tongue in his mouth but only briefly. Try to tell if he likes it. One way would be to see if he “bites” your tongue by trying to keep it in his mouth. Mix all this up and you’ll be a super kisser one day soon…

If you need more details on French Kissing checkout this detailed description on Wikihow.