My dd is like this and I have found it has many advantages. It means that however grumbly she is at home I can go round a friends house, hand her over to someone else to amuse and sit back eating cake while dd has a great time. Also I have never had to worry about leaving her if me and dp go out or on the days I am in work as I know she is so confident with other people she will be fine.
I consider myself rather lucky when compared to my poor friend whose dd cries if anyone else comes near her.
I'm afraid that I came to the conclusion that she is simply bored of me. She sees mummy every day whereas other people are new and exciting! I take her to baby groups and crap like that even though I find them dull. She needs the stimulation and seems to enjoy the time she has at home with me more.
This may be a bit pfb but... My 4 month old is very sociable, good eye contact, smiles, laughs, babbles, all that. But much more so with strangers than with me. Is this normal? Or possible sign of poor attachment? Reassurance needed please!