Bar Tab

Bar Tab is an optional side quest in Deus Ex: Human Revolution. It is given to the player by Bobby Bao, the barman in The Hive nightclub in Heng Sha.

Introduction
After you have gained access to the basement or talked to Tong Si Hung, a bouncer by the door on the way out will recommend you speak to him.

Overview
Bobby needs help locating one of Tong's clients and convincing her to pay what she owes. You'll need to disable 3 communcation relays. (Level 2 hacking required) After you've done so, you can find jaya, and if you have the social enhancement, you can convince her to either pay up (250 credits) or return her implant. You can also tell her you're going to make a deal with Bobby, lastly, you can knock her out or kill her and take 400 credits and the implant.

After you've done so, you can return to Bobby.
 * 1) If you give him the payment, he'll thank you and give you a praxis kit
 * 2) You can strike a deal with him, pay 5000 credits and he'll leave her alone, you also get a praxis kit. To get your credits back, crouch behind Bobby, do a takedown, then hide behind the counter making sure to move so that the nearest Harvester can't see you. When the alarm clears search Bobby's body for 5050 credits.
 * 3) Lastly, if you return the implant, he will get angry and give you nothing. You can take him down as described above to retrieve the Praxis kit, but you will have failed the mission.