Brynjolf keeps everyone engross in his stories about the Falmerblood Elixir. To hear him tell it, the Falmerblood is the last thing you will ever need for any aliments you might face. Brynjolf is spinning the yarn as his life depends on it. Perhaps it does. J’Zhirr never got around to asking.
With everyone’s attention focused on Brynjolf, J’Zhirr is able to carry out part two of the plan easily. This one sneaks up to Brand-Shei and reverse pickpockets him. It is like pickpocketing someone but instead of taking something, one places something on the target.