My 10 yr old ds has no friends. He walks into and out of school alone. He had a good friend up to 2nd class but last year kid pulled away. Ds was a bit possessive at times and really not interested in group sports however last year he made more effort and joined in more with group games. He's not sporty but swims and does kenpo outside school. He also attends rugby on accassion but no friends there either. He's quite opinated and clever and likes to talk about random subjects. He has asked me before if he is a nerd. Obviously someone said something to him he has a great sense of humour and is quite confident but spent entire summer without friend. Last year a party was held for boy in school but DS was not invited. He spends a lot of time playing imaginary games both at home and school and I have advised him to play more with kids in school ad he's standing out as being different. How do I help him fit in more socially?