[KimInMD]

My little Lucy is deaf, and we sign to her. I just use signs that I made up. Yes, it is possible, and it works just fine for us. The biggest challenge is that outside in the yard she can't hear me call to her, and she is busy sniffing. But inside, she usually comes when I flick the lights off and on. She knows I've come home, because she can feel the vibration from the automatic garage door. Sometimes Lucy is sleeping, so I've been teaching Lola the command "find Lucy", and she now runs upstairs to the bedroom and gives her fur sister a little lick to tell her I'm home, or it's time to eat or potty. I am positive Lola understands that Lucy can't hear. Lucy also wears a bell and has a special tag that say "Lucy is old, deaf, no teeth. She needs meds. Please call us." Your sister will do fine. It's wonderful that she has adopted a special needs dog. Please send her our best wishes for a long and happy life together.