To hum and haw means to speak in an evasive, vague, roundabout way, but in this conext the other merchants would speak straightforwardly and honestly
Consider the staetement "If you ask any other merchant, he will talk straightforwardly and honestly, then make fun of your appearance, then refuse to deal with you.". Based on this statement, is "Ask any other merchant, and he will hum and haw , then make fun of your appearance, then refuse to deal with you." a true statement? Yes/no/unknown