Is this normal? He is quite happy to be passed around to people who he's never met before and is smiley with everyone. He also doesn't seem particularly ecstatic to see me when I'm away from him - if I leave him with my mum for a few hours, when I come to get him I get a smile, but that's it - and he'd smile for anyone! I don't have a real feeling that he's missed me...I'm worried he should show a bit more of an attachment to me by now?? He also doesn't put his arms up to be picked up, should he be doing this yet?