I have a 110 lb Golden Retriever. He used to jump to everyone that came up the driveway just once and lick their face. Some people loved it, others well...At that weight people can get hurt. I had to restrain him when guests came initially. However I trained him to not do it with us by not giving him any attention at all, putting my knee up so he couldn't jump on me, say down or turn my back to him and avoiding all eye contact and attention. I would give him verbal commands to sit when I saw someone coming and reward with either a treat, clicker or verbal praise when he responded in kind. Food is a strong motivator for my dog. Figure out what motivates yours and know the triggers to the behavior and try to head it off before it happens. Eventually when he would greet people and not jump he got lots of praise and still does.