You're beginning to figure out the logistics of kissing...sort of. When I put my face near yours and pucker my lips, you smile at me, lean in, put your mouth to mine...and open it and stick out your tongue.
It's quite cute, and it cracks me up every time, but you're a little young for open-mouth kisses, don't you think?
I look forward to your first date, you know, in 20 years or so, when I have the opportunity to tell your date that the first person you french kissed was your own mother. Hopefully, by then, you'll have learned to kiss with your mouth closed.