Hau Ling is a clairvoyant that is going through some tough times, as all kinds of nasty rumors are circulating about him. Your first stop is the casino, where you’ll need to make three inquiries. You don’t have specific people pointed out to you here, but the three you need to talk with have blue speech bubbles over their head when you approach them. Once you’ve done that, you will need to seek out the tourist, who is in the Great Gate area. In fact, teleport to that area and the man will literally be right in front of you.

It appears there is an impostor, so you’ll need to search for him in the area to the west of the inn. He will be near the top of the blue circle on your map and when you speak to him, the impostor will run off towards Lady Luck. Once again, you will have to find him here, so look underneath the awning on the eastern side. The Hau Ling will show up and the impostor reveals himself to be Lai Ah (heh, liar). When the conversation is over, so will the quest.