Answer:
I'm not a bird, but I can fly through the sky. I'm not a river, but I'm full of water. What am I?
I hold two people together but touch only one. What am I?
I am the noblest musical instrument
I can wave my hands at you but I never say goodbye. You are always cool when with me even more so when I am high!
I'm written with two letters, said with one and seen with two. What am I?
I am rarely touched but often held. If you are smart you'll use me well. What am I?