After accepting the quest, you have to go to gridania and talk to the mage receptionist at the mage's guild, he'll send you over to the repair NPC at the ebony stalls, she'll ask you to raise the shop's clientelle by saying stuff to them.
In my journey I came across this interesting mini game called "Parleying"
a 4x3 square will appear, a bunch of icons with some points attached to them will appear, the objective of the game is to basically persuade someone by amassing points. You do this by trying to select the icon with the highest points possible, however special rules apply; if 2 or more icons that are identical are next to each other, the points will sum and both icons will fade; granting more points. Take note that icons that are across the board will sum up too, for example:
XZQI
ZYZQ
XXYI
If you choose the bolded X, the one to the right and the one on top will both disappear alongside the X you selected. Summing points from 3 icons instead of one.
*UPON FURTHER TESTING, IT SEEMS THE POINT SUM ALSO APPLIES IF THE ITEM IS ON THE SAME ROW/COLUMN OF THE ONE YOU PICKED, NOT ONLY WHEN THE ITEM IS NEXT OR ACROSS THE BOARD*
It would work out like this:
XYZX
XZXX
XYXZ
If you pick the Bolded X, all the identical icons on the same row/column of it will disappear and sum up a lot of points since you got 5 items worth of points instead of 1 in this example.
As Icons disappear, more will appear to fill in the blank spaces left behind, so the board will always be full.
It's a bit hard to explain, but hopefully you'll understand when you see the board.
Order of NPCs you have to Parley with went as follows:
Miounne
Keelty
Nesta
Cicely