Question

how are peole recognised by theit gendre

Answer 1

"College" is not the subject. Nor is it the grade level.

It takes more than gender identification to recognize a person.

Answer 2

Gender includes both the psychological and sociological aspects of the differences between sexes. So gender differences could involve dress, hair styles, makeup, ways of sitting, walking or standing and other factors, depending on the culture.

(It would be helpful if you were a little more careful in avoiding typos. Sometimes they change the meaning of your communication or make it hard to understand.)