Using post processing can be a very effective way to draw attention to your subject. It can also be overdone like most everything in post so be careful. You are looking for subtle changes in most cases. Here is a quick list of how you can use post processing to draw the eye.
Just remember when you use post processing it is very easy to overdue anything. This is no exception. What is overdone? Well, that is subjective. Only you and your clients/audiance can determine what is too much. Thanks for reading!