me and my ex boyfriend used to have really messy kisses when we kissed with tongue and it was great! I love it. you just slowly put your tongue into their mouth and they'll do the rest. and when they put it in your mouth you can suck it, or touch your tongue with it, you can pretty much do anything and it'll be great. I once kissed a guy with tongue and he loved it when I bit his tongue while we were kissing. you can do pretty much anything haha. 😊

DONT JUST LIKE STRAIGHT UP STICK YOUR TONGUE IN THERE MOUTH RIGHT AWAY ITS HORRIFYING 😭😭 literally I had a a guy do that to me and his mouth was like really open and it was brutal. If you do it right, start making out and slowly ease into it it's fantastic but try really hard to not to like lick them like a dog... 

People do lots of different things. Some are fun, some silly, some arousing. Experiment and be willing to feel a little weird. You'll find out what you and your partner like!

You kinda just keep licking their tongue, but softly. Idk, it's hard to explain lol

What Savi said, also to initiate the French kissing you can lick their bottom lip while kissing. It's kind of like asking for permission.