Answer:
I'm sometimes white and always wrong. I can break a heart and hurt the strong. I can build love and tear it down. I can make a smile, but more often bring a frown. What am I?
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
I belong to you but others use me more often than you do. What am I?
I jump when I walk and sit when I stand.
If you drop me, I'm sure to crack. Give me a smile and I'll always smile back. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?