If you smile , even if you're in a bad mood , it will immediately improve your mood .?

My Believe is, "Smile Your Face Value will Increase" :D

If you will smile, your charm will inspire to someone to be happy. so Keep Smiling nd make other smile.....................

I go one step further I try to make people smile I use humor I engage people and make their day a little brighter

Yes, I would say so, it works!

Definitely, it is correct. I agree.

This is true I worked in a call center & we were taught that by smiling caused us to have a friendlier tone & attitude on our customer service calls.

Absolutely - what is bad mood? :) SMILE

Yes I believe it will help lift your mood when you smile. Especially if you are smiling at others. You will see them smile back and that has to make you feel better :)