How hard is it for you to crack a smile?
Does it cost you money?
Does it hurt you physically?
I know that every time I smile at someone, more times than not, I receive one in return, and I feel wonderful! YOU should try it...make it a daily practice ~ I do! Your smile may just be what someone needed to turn their otherwise crappy day around.
So, take some time to share those smiles...you'll be happy you did!