Expressions are a way of giving some life to the thoughts and feelings inside us. When you cry, u express sadness and disappointment. When you catch a good joke, you laugh a lot and express the pleasure.
Expressions are a part and parcel of every human being on this earth. Every person has the right to express himself. It is only through expressions that one can achieve a harmony between the physical exterior and the mental core. It is a way of giving life to your thoughts and feelings. But not everyone expresses freely. The main reasons are the barriers we have created within ourselves. We always think of what the world would think of us. Because of this we restrain ourselves from laughingly completely, tilting our head, or even scratching our ears! We try to be not what we are, but what we think will appeal to the world. Hardly do we realize that the world is just like us. It will be busy thinking of what we will think of it, rather than analyzing our actions.
When one expresses one self freely, it's the ultimate satisfaction for the mind. This is because the physical hardware of the human body is faithfully supporting its mental software. The person then is always comfortable anywhere with anyone and at anytime! If one doesn't express properly, it wont make the sun rise in the west, but it will only lead to increased frustrations. When frustrations increase, efficiency decreases and a person starts blaming the world, god or anyone in general.
Well to practically speak of expressions, once you start using them in your normal day to day life, u will get used to them. Also people around you will get used to your expressions. When the doyen of Indian film industry Mr. Amitabh Bachchan came into the movies, he had one eye smaller than the other. He however carried on without being self conscious about it and captured the heart of countless Indians dead and alive. Also Sylvester Stallone, who is the famous Mr. Big Muscles from Hollywood was actually having some mental problems in his childhood. Even now look at his eyes and you will get a rare glimpse. But then he came above all that and now you can all see how big he has become.
If you are angry at some one, let him know. If you admire someone, let that person know. If you love someone, let her know, because life is too short to keep these things as secret. Express yourself and spice up your life.