In this task if the pronoun is female or gender-neutral you are to replace it with a male pronoun. If there are no pronouns add a male-gendered word to the sentence.

Wow! The closest thing I do to body building is dancing or yoga. Haha!
Wow! the most build body work out I do is dancing hahaha. 

She works as a volunteer firefighter.
I work as a volunteer firefighter.

Hey dude, how's it going?

Hello. how is it going over there?