Whilst Tyson isn’t someone who thinks by sticking out his tongue or regularly chews gum, he does tend to think better when he has something in his mouth.
He largely continues to smoke on-and-off as a way of keeping his hands occupied, but it’s also about giving his mouth something to do when he’s getting antsy.
Whilst teaching Tyson the harmonica was largely an excuse for Sebastian and Tyson to kiss, Moran was also aware that giving Delaney a simple task to focus on - especially one that kept his mouth busy - was a good way to get the gears turning in his head on whatever project had been stumping him.
And, no matter how old he becomes and no matter which verses he is in, Tyson will always be someone who gets his tongue stuck in glass bottles; especially when that bottle is half-full and there’s someone he wants to impress nearby.