[Mrluvaluva]

I think it's out of nervousness too. She seems to start with them at the most inappropriate times where she feels self conscious about the situation. She did it during Benedict's masturbation manifesto, and when getting chastised for nomination talk. I think she was just embarrassed that people were told what she had been saying about Becky there and she felt a bit stupid. I think Benedict was a little unfair in that episode.