My baby stares at nothing, he's not focusing on anything I can see, but whatever he is looking at he finds very amusing, he smiles, laughs and makes noises like he is talking to someone. He just spent about 10 minutes completely amused by something to his left, he'd smile then make some noises, and then smile again, then even made a noise that sounded like a laugh. He's started to do it quite regularly and its usually the same spot he looks at. I like to think its my mum he is smiling at who died just over a year ago. Wishful thinking maybe but its a nice idea. I know some people will be cynical, but I do believe in ghosts so I hope she is watching over him, if it is her he seems to like her!