My mother is nearly 97 with advanced AD and lately she has started trying to put all sorts in her mouth, often licking the things first. She began with my hand, while I was holding hers. Since I do often kiss her hand I wondered whether she was trying to kiss back, but had forgotten how, but she has since done it with everything from Easter cards to my iPad the other day - I had taken it to show her pics of very new great-granddaughter, even though I knew it would mean nothing to her any more. (Not really sad about that BTW - she has been so bad for so long we don't expect any connection with anything any more.) But I was just wondering whether anyone else has had the same. The other day I let her put my fingers in her mouth to see what she would do, and she bit them! (Not many teeth left so it was Ok). I am not bothered about it, but just interested to know whether it's at all common.