The host of tonight's party said Kevin was "friendly" as a quizzical look passed his face. Another good friend said she didn't recognize Kevin tonight. What was different? He was being personable! He was social! He was touching other people! He talked to people he didn't know! Perhaps we gave him 4 glasses of punch from the wrong bowl. He was raring to go for the couple of hours we were there (after a very short warm-up period) and he kept playing happily with various people all night. He was wired when we left the party so we expected that he may not fall asleep on the drive home. Then before even being buckled into his carseat, his eyes turned glassy and his jaw went slack. In 90 seconds from walking out the door to putting him in the car, he had turned from party animal into zombie. I said to Andy, "Oh no - it's almost as if he was energized by..." and then together we slowly mouthed, "PEOPLE." Our Myers-Briggs "I-ness" twitched nervously the whole way home.