Hi welcome to HCM . Any movement in a coma patient , is definitely a positive sign of recovery. You need to have a lot and lot of patience as the recovery period varies between individuals and depends on the age and cause of coma too. Since you haven t mentioned the medical details behind coma, in general, - talk to him everyday about what s happening around, - remind him some good old memories(through photos/videos) -frequently use the familiar names and places and - try giving him verbal commands like , open your eyes, try giving him objects to hold etc....... Along with the medications he is taking, all he needs is huge moral support ,physiotherapy and a stimulus to recollect what s going on. It might take some time(a couple of months) , but don t loose hope. Although I am a doctor, I am writing this with my own personal experience. So, be an optimist and hope for the best. Please mention his medical data /reports for a better suggestion on his vital status. Take care :).