I have two dds and I am concerned about the way my elder one "does" playdates. I'm not sure if she is just very anxious about having people home, but she seems to undergo a bizarre personality transformation whenever anyone comes back - she behaves very unnaturally, showing off, asking me things she would never normally ask me, and she seems not to know how to relax into play in her own house unless she knows the person very very very well.It must be a home thing, because she seems to be popular and have a wide variety of friends. She is 7.5 and very experienced at playdates. I have to put myself at the other end of the house so i don't have to listen to her weird behaviour, as it makes me very sad. I don't know how to confront her about it. Obviously if she is blatantly showing off and I am there I will gently correct her, but it's just weird that she can't relax with people in her own home and I get anxious that she will drive people away with her oddness.Advice?