In the evening after I walk, my gf and I talk on Messenger. When I leave the house I set my Messenger status to "taking a walk" Somehow she knows when I get back because almost as soon as I walk in the room she messages me. The only thing I do with the computer after I get home is to refresh the screen which has gone on power save mode. Does this tip her off some way that I'm home? I'm not complaining and am not trying to hide from her but I'd like to know how she knows. She claims she is psychic! Any help is appreciated because I'm puzzled. Thanks!