World without Smile
Smiling has got to be one of the best inventions. It doesn't matter what race you are, what part of the world you're from, your culture, or religion. Smiles are universal and language independent. It's a great way to pass the time. You get a wide range of responses. Rarely, you'll get a weird look. Sometimes, they'll blush. Most of the time, you'll get a smile back :)