Giving the right handshake can help tell the interviewer a bit about yourself e.g. manners, etiquette, your confidence etc. With this minimal bit of contact, it can dictate how your interview goes from then. To help you not give the wrong type of handshake, below we have the ones you should never ever use:-
The boneless - No grip. Conveys lack of confidence.
The seducer - Holds on too long. Can convey sexual interest.
The patroniser - Clasps the other person’s hand in both of theirs. Conveys fatal over-familiarity
The dominator - Forces their hand on yours from above. Conveys potential bully
The pixie - Barely touches; hand flutters. Conveys lack of seriousness. Often accompanied by lack of eye contact
The one-arm bandit - Whole arm extends stiffly. Conveys that they feel threatened, or worse, that they feel superior
The cruncher - The other person’s hand hurts afterwards
The Wet hand - Very wet and very uncomfortable that some even dread. Can be a very embarrassing handshake