Answer:
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
Never ahead, ever behind, yet flying swiftly past, for a child, I last forever, for adults, I'm gone too fast.
You went into the woods and got me. You sat down to seek me. You brought me home because you couldn't find me.
My first part compliments people. My second part makes things known. My third part hurts feelings. My fourth part may hold a precious treasure. My fifth part is used when sharing fancy beverages.
I have a frame but no pictures. I have poles but not standing up. What am I?
The warmer I am the fresher I am.