Cross-cultural studies have shown that smiling is used as a means of communicating emotions throughout the world. Smiling is a very easy yet very powerful human expression. In some cases, its a sign of relief after grief, sometimes a smile denotes good times and most of the times its just a measure of acknowledgment. It spreads easy and is often symbiotic; spreading equal joy to the giver and the receiver. A warm smile is more like a universal language of kindness and good will. Smile... for it costs nothing, but its value is incalculable!

Pakistani, Sumira Kamal, 3, who lives next to a wood and coal supplier, looks on smiling, while playing with her friends, unseen, in Islamabad, Pakistan, Jan. 23. (Muhammed Muheisen, AP)