Usually when a girl tests me I give an acknowledging chuckle or smirk and then look away or say something on my mind. Initially this does the job but as a girl gets to know me she learns to press past the social boundary of not asking over again. "Hey, you didn't answer."

Is it okay to just keep denying them verbally? "Sorry ladybrah". "nope, secret, nope". Well mannered but not even trying to deal with whatever their test was?

I feel it's a strong frame. But maybe it's too antagonistic.