perk, perq

Perk or perk, used in the expression "perk up", means to liven up, or to become vivacious ( perky )--
He will perk up after he has his coffee.
Perk up! Are you too tired to play?

Perk or perk is also short for "percolate", meaning to boil water or liquid so that it bubbles up through something, such as coffee--
The coffee will perk for a few minutes before it is ready.
You can see the coffee perk in the little glass knob on top of the pot.

Perq or perq ( rhymes with perk, sometimes spelled perk ) is short for "perquisite", meaning a fringe benefit or freebie that comes with a job--
The best perq of this job is that we get to eat our mistakes.
The pay isn't good, but they like the perq of taking the new devices home to test them.

Now that you know that, you can say--
"One perq of working in the coffee shop is that we will all perk up after we perk the coffee."

Note--"prerequisite" means a condition that must be met in advance of something, usually a course that is required before enrolling in a course of a higher level--
Freshman English is a prerequisite for this course.