When we go on play dates (mostly with boys for some reason) they seem sorted toy wise-train set or Lego-which they happily play on their own and it can be added to so the child can 'invest' in it too. My DD will happily draw and do crafts alone but will only play with her doll's house, happyland town etc with someone else. I play as much as I can but it would be helpful if there was something she could enjoy alone some of the time. Or may be I am expecting too much...