Answer:
If you drop me, I'm sure to crack. Give me a smile and I'll always smile back. What am I?
I am flora, not fauna. I am foliage, not trees. I am shrubbery, not grass. What am I?
I fill a room but take no space. What am I?
What goes through a door but never goes in and never comes out?
Without a bridle or a saddle across a thing I ride a-straddle. And those I ride by help of me though almost blind are made to see.
A little house full of meat, no door to go in and eat.