Ben's body language: Ben is relaxed and really letting things hang out -- witness his open left palm and the carefree way he's letting his jacket ride up on his right hip. By thrusting his hat in the air to reveal his disshelved hair and letting out a full-pitch sream, Ben is capitalizing on the moment -- as if it might be his only chance to cheer all day.
Jen's body language: By turning her back toward Ben, Jen is clearly distancing herself from her man. Her clenched jaw indicates that she might be embarrassed to be in his company and that she clearly wishes she were somewhere else. Her right eye appears to be wandering, perhaps to one of the dugouts or the on-deck circle.