Easiest Language In This World

We are all belong to different countries and cultures every one has its own language and culture. If two strangers meet to together how they understand to each other what he want to say and whats his feelings. There is only one language which we know from our child hood and we dont learn it from any body else. That language is Body Language. Body language is actually non verbal language. and its also known as non verbal communication. If a person is talk to some one but he dont match eyes with other one then next one is easily determine he cheats with me. there is a famous quote that eyes never lie and its true. your eyemovement, hands movement your way of style tells every thing.
Its a true story
A person came into a police station and admit his crime by saying this i murder 100 children by dipped  them into the acid drums and continuously laughing. And the police man don't believe on him and out him from police station. Next day he came again and repeat his words what he said last time. Then one of them officier think and said ok lets go and saw that place. When they look that place they became fear because the statement of a person is right.