What reaction do you have to selfie tongue pics ?
An example would help.
I can't tell if you're referring to someone in a kitchen with chocolate on their face with their tongue stuck out to the side trying to lick it off, or someone posting a polaroid from the 70's with their thumbs to their temples fingers straight up sticking their tongue out, or the current selfie "phenomenon" of "ahegao" which a lot of cam prostitu...I mean entrepreneurs in a legitimate services industry...use to exaggerate a pleasurable sexual response.
Other than that, are you referring to mostly men or women?
I haven't perused a lot of guys profiles lately.
But in my limited experience I've seen very few male profiles with their tongue stuck out. I've seen a lot of profile pictures with a (sometimes subtle) middle finger, scowl, beards, guns, fish, vehicles, tattoos, but not so much tongue.
The most I've ever seen a tongue stuck out with guys was over a rocker "devil horns" hand sign.
So I guess my answer to your question is it depends on what else is in the selfie.
My reaction is going to be different between someone in a bikini squatting on a giant pillow making an "ahegao" face with a caption of "join my onlyfans" vs. some long haired guy with a metallica tshirt standing in the woods with a beer in one hand making the devil horn sign and sticking his tongue out with a caption of "metal fest 2016!"
Or are you referring to selfies where it's only their tongue? Like a major closeup of just their tongue in the picture?
I have yet to see one or read their profile. Maybe they're a tongue doctor.
But again, depends on more information than just a picture by itself.