Click on them and see which of your resources they're interested in. Hit F4 to pop into the diplomacy screen and see who has money in the bank. However, there is one more thing that luxuries do: sell for lots of cold, hard cash to the AI. The happier your empire is, the quicker you trigger Golden Ages. Trade those luxuries! Luxury resources like silk and wine keep your people happy. Here are a few tips to get you past Prince difficulty. (You read our review, right?) Once you get a handle on the basics of settling cities, conducting diplomacy, and maybe get a war or two under your belt, it's time to start thinking about the next level. There's a lot to learn about Civilization V, even if you're an old hand at conquering the world.
