As soon as free commodities given in good faith are suggested, Tchok's eyes briefly become furious before finally narrowing into suspicion. There is no such thing as free commodities given in good faith anywhere on Tchok's home planet and any offers to the contrary would immediately be seen as a scam of such amateurish nature as to add insult to the intended injury of the "mark", implying that the intended target of such a scam is too stupid to recognize the setup for what it is.
"My name is Tchok", he tells the Skal'Az, giving him an icy stare. "Come Suple," he says, and instead of accepting S'skaar's generous offer, Tchok pointedly resettles the old rifle's sling on his shoulder and follows the others.