There is not alot of difference, you just talk w/ your hands instead of your mouth, although talking and using facial expressions are good to, they can still read an expression. The best tip I have is to teach them early to focus on you, when they look at your face, treat them, eventually it becomes automatic. Also desensitize them to being touched and handled while sleeping.
I would say they are generally more attentive then other dogs, not just to their owners, but to everything around them. Their other senses are also alot stronger, Iris has a nose like a bloodhound and notices the slightest movements. Now at first her deafness was very obvious, when she was a puppy she'd sleep like a log and nothing was waking her up! But by the time she was probably around 3 months old I had people argue w/ me about it (sort of joking, but it was very hard to tell).
Over all I'd say the hardest part of having a deaf dog is coming up w/ the new hand signals, and remembering them (and teaching them to anyone else that needs to know).
