chewing on tongue

Tallon has taken to chewing on his tongue at the side of his mouth. Is this normal?? LOL. DH was a bit worried, and I said he's probably just discovered that he has this wierd thing permanently in his mouth.

I'm more worried that he's going to be like my dad, and my nephew.. and be doing strange things with his tongue when he's concentrating! OMG my nephew's tongue just goes crazy, in and out and around when he's writing or something. heheh. Could it be the beginnings of a funny tongue habit?

I don't think he's teething yet, altho he dribbles like mad at the moment. and where he's chewing his tongue wouldn't be soothing sore gums, unless he's getting side/back teeth first!

Anyone else had this??