It is generally understood that wearing such clothes on backwards is one of the most effective ways to be unpopular. Another Style in which people can make themselves unpopular is by properly adjusting their actions. Of course the most effective mechanisms to unpopularity by actions are those that are most unpopular. In order to get along with others and have everyone like one's self, good communication is important, which is why bad communication will help a person to attain unpopularity. Typical stuttering is not quite good enough.
People stutter all the time.
Public spitting is considered most unpopular. The third avenue in bad communication is general poor choice of words. The easiest way to change one's appearance is to use make-up. Another idea is piercing facial features and connecting them with a spaghetti noodle. However, those people whom have always worn make-up might try going a few days without it in their scheduled attempts at unpopularity.