I have abs but they aren't very "attractive" looking. how do i give my abs a better appearance?

Consider working: a trainer to obtain the definition that you are looking for. Be well.

Says who?: Simply being lean makes your abs visible, and you can look even better by giving them mass with resistance training. Best is actually cable crunches. You can get with a trainer, try adding some more aerobic stuff such as some real running or swimming, or perhaps best of all, remember the prime goals of fitness -- good health. And congratulations on what you've achieved already.