Needs review
Source: Dark Sun 3

Description: You can circumvent various official obstacles when a person in a position of trust or authority is willing to accept “presents.

Prerequisites: CHA 13, Knowledge (Local)(5 ranks), Diplomacy (7 ranks)

This feat grants a new use for the Diplomacy skill. You must share a language with a creature in order to use this option. This option cannot be used during combat.

Bribery Etiquette: You can discern the timing of the offer, the amount that will most likely garner the wanted reaction, and the best way to disguise the bribe so that it doesn’t draw attention from unwanted witnesses. An insulted character will have his attitude changed one step for the worse and might report you to the proper authorities (this can be negated by a successful Diplomacy check, albeit with a –10 penalty).

To bribe a character, you must give him a number of ceramic pieces (in coins, items or other valuables) as shown below.