Will I have a drastic change in my chest if I do push-ups every morning, even with a ectomorph skeletal frame? Or, do I absolutely have to bulk to see size gain? Thanks
If you want to progress and build a physique dude you'll need to lift ... the bodyweight stuff will be minimally helpful in comparison. To save yourself about 4 years though check out a guy called Ben Pakulski on youtube - learning to keep tension in a muscle will be the hardest but best thing to learn if you want to build a physique.