Tells!

[Percival]

If you have 2 people you can kill the npcs in poker, unless the recent update changed that. They will never fold two pair, so if both of you have about 50k gold, hope an npc has at least two pair and don't stop raising (well, lol, stop raising so your friend has a bit of money left so he can "win" it back from you). You will win 50k in gold. Then, the npcs "do" all fold at times, so you can give your friend back the money he/she lost to you raising.

It's pretty easy to beat the npcs by yourself, but you have to know how to play poker, and trust me, most people think they know how to play, but they don't. I'm just talking about the math (odds) part, since there is no psychology involved, although the npcs do bluff on ocassion. The npcs aren't very bright, so if you have some skill, you should do well.