During an awkward moment, ball up your fist vertically (like a dap) and place your other hand on top. One hand is the trunk and the other is the branches. The branches can easily vary in motion.
I was washing my hands in the Bayside High library, when I heard someone in the stall making some treacherous noises. Guess who comes walking out? Principal Belding, and he was nannied up and nervous looking. We've all been there, so out grew the Freaky Tree and we both laughed!