When stores are found to adhere to the boycott, they are asked to prominently display this tasteful poster of a bloody handprint on an Israeli flag so people know they can buy goods safely there.
The poster says:
Don't pay the price of the bullet that kills our sons
This store has no enemy products
This store has no enemy products
The Nasheron gathering - cleansing initiative
According to the organizers, 30% of Jordan's shops already don't sell Israeli goods, 50% weren't aware of the issue and are willing to join the boycott, and 20% don't care.
Judging from the history of anti-Israel boycotts, we can expect soon to see violent threats and physical attacks against stores that sell Israeli goods in Jordan.
(h/t Ibn Boutros)