Introduction

Communication is a purposeful and systematic way of sharing information between speaker and listener. It is done with the help of signs, symbols and gestures. By using some medium, one can exchange his/her ideas with the next very effectively. All the creatures in the world have their own ways of communication. For example, human beings birds, animals, insects, etc. have different communication systems suitable to them. However, human being has been using communication extensively for centuries then any other creatures in the world. we know that communication is the root cause to socialize human being. NO person can live in isolation; human civilization is the result of systematic communication; without which, humans would have been somewhere in the caves as they were in the Stone age.