My mind would have a big iron door labeled "Psychonauts Stuff In Here" and my astral self would be pushing on the door, trying to close it, and there would be so much stuff in there that it would continually get stuck, and then
pour stuff all over me.
If you use
-Punch on me, I say "Could you do that to the door? It won't close..."
-Pyro on me, I say "Yay! Fire! Me like fire!"
-TK on me, I say "Hey! You missed! The door is over there!"
Outside the door, there would be scraps of paper strewn across the floor, with lots of stuff on them.