In many cases, you want your nails to complement the outfit that you are wearing. If that is the case, choose colors that go well with your clothing of choice and then add something to make your manicure pop. You can choose to do your own nail art or you can purchase simulated jewels and the like in order to create a more upscale look. It really depends on the outfit that you are wearing and the occasion for which you are giving yourself a manicure in the first place. The main thing to remember is to have fun and play with it. Don’t be afraid try new things.