Answer:
You can do this with your friends. You can do this with your nose. But don't do it with your friend's nose!
A tower at the root of all confusion.
I always run but never walk, I sometimes sing but cannot talk, No head on which a hat to place, You always look me in the face.
What instrument can make any sound and be heard but not touched or seen?
Before Google, we actually had to physically look things up in this building full of knowledge.
What never gets any wetter no matter how hard it rains?