Conduct a non-intrusive "breaching experiment", wherein you attempt to validate the existence of a particular norm. This may include singing on the bus, singing in an elevator, not talking to anyone for a day, or any other informally deviant activity.
No formal deviance (crime) allowed! In writing your assignment paper, describe your experiment and the specific norm that you will attempt to breach.
Consider in writing the potential reactions you will receive while conducting your breaching experiment, and attempt to explain these potential reactions using Sociological theories.
Report people's actual reactions to your behavior during your breaching experiment, and discuss conclusions that you have reached about the relative importance of the social norm being studied.