Dallas: he avoids eye contact with you making you suspicous when he lies

Two-bit: he tries to conceal the lie with a joke wich just gives the lie away for you

Steve: his voice cracks a little when he lies to you

Sodapop: you lernt that his tell when he lies that he bites his lip when he lies

Darry: what he does when he lies is he just shakes his head

Johnny: what he does when he lies he just says in an unconvincing tone wich you didnt pick up untill the second time he does it

Ponyboy: all he does when he lies he just shows a fake smile