what would you do or say to the people that give you grumpy look when you smile at them?

Ignore them the next time I saw them.

I hate that, especially store employees, I'm really polite at my job and in normal life, and smiling at random people is really going out of your way, its like would it kill you to crack an effin smile, grumpy pants? When randoms smile at me, it always makes me feel better

It depends on the person. If this person had a dislike for me then I'd probably give it back, though sometimes I give them a smile knowing it annoys them.

If it's a friend I always smile.

I just smile wider - not my problem if they are having a case of the grumps.

Sure I'd smile next time - it is bound to infect them eventually

I'd tell them to take off their grumpy pants.

I am always smiling, but in their case i could make an exception!

I keep smiling although I am not the best smiler in the world. I keep my fake smile on for them as best I can.

if i were you just keep on smiling. if you have a good attitude all the way through then maybe that person will soften up a bit. dont be the bad guy who wants revenge...be the good guy...or girl ha

I usually get scared and just keep smiling and walk away then avoid them xD

It's rare that I'm not the grumpy person.