Answer:
I can be any color you can imagine. You see me in everyday life. Look around, you can probably see some of me right now. What am I?
I'm tall when I'm young and I'm short when I'm old. What am I?
You cannot keep me until you have given me. What am I?
I follow you all the time and copy your every move but you can't touch me or catch me. What am I?
What belongs to you but others use it more than you do?
I always have to work with something in my eye. What am I?