Reference: http://wisegeek.com/what-is-gernder-sensitivity.htm
Gender Sensitivity is the act of being sensitive of what you say about the opposite sex. Usually women are excluded, like shown in the word "mankind". Most movies mention "no man" instead of "no one". Some women protest about it, but it doesn't usually work. In ancient times, men were the ones who would would outside while women would stay in the house and do chored. Well luckily, people are developing gender sensitive words. They are also replacing "no man" with "no one". People are starting to be gender sensitive already. Well, that is good news for all of us. Hopefully in the near future, people wouldn't take advantage of each one's gender and none will be excluded.