A handshake in which an individual grip firmly but not too firmly, pumps your hand once or twice and looks you straight in the eye can signify an individual who is confident, sees you as an equal and intends an honest,up-front negotiation of discussion.If a person continues to hold onto your hand for longer than expected,he or she may be attempting to show sincerity. A handshake in which an individual grip firmly but not too firmly, pumps your hand once or twice and looks you straight in the eye can signify an individual who is confident, sees you as an equal and intends an honest, up-front negotiation of discussion. If a person continues to hold onto your hand for longer than expected, he or she may be attempting to show sincerity