Investigate stereotypes about whether men or women say “like” or “um/uh” more often. Select a task that forces respondents to think about the answer (for example, “Recite the alphabet backwards” or “Name the last five presidents/first ladies/prime ministers of Great Britain backwards”) and pose as Jay Leno-style interviewers on the street. You can count the number of times a respondent says “like” in his or her answer, or how many times men and women say “um” versus “uh.”