I was thinking exactly the same. She seems to be the most shy, BUT, she felt the need to hug everyone. In that circumstance it was maybe the right thing to do : to let the emotion guiding your behavior without self restriction.
I think that watching a movie you played in with 2000 people and all the team with which you stayed several month in close cooperation while the 2000 people in standing ovation for your performance is far more powerful than any drug. Don’t forget she was only 26 here.