What does it mean when a guy sticks his tongue out at a girl?

[Chanel123]

So a dude that I've just been chatting to for a few days online and see in my gym is now properly speaking to me. He's a really cool guy, talkative and confident. I indirectly told him that I think he is attractive too. I saw him today and he stuck his tongue out at me as soon as I saw him and then once again a different time- he was doing it in a playful way though, like a kid would. Not the dirty way. What does this mean?

He also came up to me when he was leaving the gym and we were talking for a long-ish time and he touched my back as he was leaving.

[Anonymous]

the other day I stuck my tongue out at a girl at work

I wanted to say “despite all that has happened recently, I still think you're cute”

I've got her number but was friend zoned a few months prior , but when I started chatting up other girls she seemed upset.

the tongue was meant as a childish “I forgive you totally for that but lets stop being so formal”

she giggled but I've still no idea what to do next

[martyfellow]

He's just flirting in a silly way. Appropriate for the gym, though, where there are usually informal rules against 'serious' flirations.

Touching you is kind of an obvious giveaway he likes you in a warm way, no?

[Anonymous]

He's just being playful. Don't worry much about it.