I ran an orc barbarian with Int, Wis, Cha 6 each whose preferred approach to interacting with new things was on the basis of taste.
Poor guy once electrocuted himself (not fatally) while licking a magical portal. He even tried to apply it in a fight once while fighting an allip. First he tried hitting it and being unable to do so. Then he tried to wrestle it and couldn't. So he finally tried opening his mouth and running back and forth through it, trying to swallow pieces of it. By this time the poor guy was down to 2 Cha (and the other players were hysterical with laughter), so he ran off screaming.