Answer:
If you drop me, I'm sure to crack. Give me a smile and I'll always smile back. What am I?
I get paid to shoot people then blow them up.
I go inside boots and outside shoes. What am I?
I hold two people together but touch only one.
I am easy to waste and unstoppable. What am I?
The sun bakes them, The hand breaks them, The foot treads on them, And the mouth tastes them. What are they?