By maintaining eye contact, you can win other's faith in you. You can present yourself in a marvelous manner, all may easily believe in you. You can promote yourself and if you do not maintain eye contact, people think that you have lack of confidence and you are not telling truth.
Some Examples:-Motivational Speaker, Leader, News Reporter, all have to maintain eye - contact or they will look odd and won’t be able to be on that position where they are.
Postures and Gestures must be real, not stiff and clumsy. At sitting time, your back and neck should be straight but not too stiff. Otherwise it will not look real, At walking time, distance between both the feet should be 6" to 10" and as per your height, On a stage if you are giving any presentation or speech gaping between the feet should be as per your height.
For Example - If your height is six feats then gap will be 6" and five feats 5". About hands it must not be in pocket and playing with key chain etc. Both hand's palms must be connected with each other completely but not stiff again.
Note: - Keep observing great speaker & orators, They don’t copy others .They make their own way and people follow it(BE A TREND SETTER NOT A TREND FOLLOWER)
Hand Shakes are of different types like firm. Dead – Fish handshake, Aggressive handshake, Firm handshake, Give me punch, Favorable handshake.