"Doing it" states that an action is being performed, other versions being "accomplishing the task", "engaged in activity", and "working on the job". The sexual euphemism "doing it" (doing the deed) is synonymous with other idiomatic colloquial phrases indicating sex, such as "the horizontal mambo", "jumping her bones", or more popularly "hooking up".
Taking the Michael? Are you serious?
taking them for granted, belittled
Inaction??
Caretaking
The word you may need is 'imitation'
Yes, the word 'happen' is an action verb; a word for the act of occurring, taking place.
The word preempt means to take action to ensure another action is prevented. Example being someone taking a preemptive bid on an auction before someone else does.
another word for taking a chance is dare
Profalactic
Taking the Michael? Are you serious?
taking them for granted, belittled
Inaction??
to commandeer.
Taking Aim
Chat
The word that goes in the blank is "receiving." The pattern is that "giving" (action) is to "taking" (opposite action) as "living" (ongoing action) is to "receiving" (opposite ongoing action).
Acronym