A is only 18 weeks old but I swear she knows what the monitor is! She looks right into it with these big sweet eyes and gurgles at it... maybe she realises that when she looks at it we appear pretty quickly afterwards? I don't think she does it through the night when we're in the room too, it seems more of a nap thing.

Or, she could just be drawn to it because of the lights, which is probably more likely : )