Your first personal contact during an introduction is the handshake. Make it count by making it a two-step process. 1) Shake the hand; 2) Look the person in the eye. I’ll never understand people who shake my hand while looking someplace else.
Eye contact is such a simple thing, but it’s so important. These people spend loads of time and money going to workshops, and seminars, and conferences, to learn how to do well in business, and then they let their eyes roam during a handshake and blow the whole thing. Always put the two steps together if you want to make a sincere and lasting impression.