Caroline Kennedy, you know, might need, you know, a speech coach, um, if she, you know, wants, um, to be a senator. Um, you know? Kennedy, who gave a flurry of media interviews on Friday and Saturday, revealed some cringing verbal tics that showed her inexperience as a speaker, experts told the Daily News. In a 30-minute session with The News on Saturday, Kennedy punctuated her answers with "you know" more than 200 times. "Um" was fairly constant, too.