These are something I haven't seen many posts about..
I have been working out for about 6 months now, making some decent lean gains from where I used to be (legit stick). I haven't done the whole heavy bulking phase, just because i'd rather gain the weight slow and lean..
One thing I noticed though from the bottom of my pecs and up, I have definitely added on some good mass and toned too. My abs too are a Little less showing but more "defined" since there is some actual muscle there now instead of just.... pure skinny.
The weird thing though, it looks like my obliques are starting to stick out and I don't know if it's muscle or fattish.. but i think more on the fat side.
I know there is no "best workout", but what exercises specifically work on these?