My response to him was,, diet, and cardio.. This is the really only way to get your abs to pop out. Unless you are really lean,, most of us have a nice layer of fat just covering up our abs.. And no matter how hard we workout in the gym, or at home,, unless we eat right, and support with cardio and working out, our abs will stay hidden under that nice layer of protection.. :)..
Cardio time may vary for everyone. We all have different bodytypes, some people respond to weight training well, and some do better with cardio. If you have gotten to a point where nothing seems to be changing, then its deffinately time to change things up..Our bodies grow custom to the stress we put on it everyday, so if we contiue doing the same program everyday, our bodies say,, ok, im used to this,, im just gonna stay right here.. If you want change, you have to change yourself..
Summer is pretty much here in florida,, these 80-90 degree days have me wanting to be at the pool everyday.. and what i wouldnt give to have nice abs,, but i also know that unless my cardio picks up,, I will not be able to have them. But if you work really hard, and watch what you are eating, and doing enough cardio, and sometimes just pushing past what you think you should do, those abs will come in..