don't jam it down her throat. ok this may be odd sounding, but think of her tongue as an ice cream cone or a stamp. lightly touch her tounge with yours. other than that super bad example...i have no idea what to tell you...
"So tonight, when you're wondering what to say, or how you look, or whether or not she likes you, just remember, she is already out with you. That means she said yes when she could have said no. That means she made a plan when she could have just blown you off. So that means it is no longer your job to try to make her like you. It is your job not to mess it up."
-Hitch