Answer:
You saw me where I never was and where I could not be. And yet within that very place, my face you often see.
What can you throw but not catch?
If you drop me I'm sure to crack. But give me a smile and I'll always smile back.
Everyone has it and no one can lose it, what is it?
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard.
You can always find me in the past. I am created in the present, but the future can not change me. What am I?