Negative facial expressions = angry face are not only gross and unappealing but also induce hormonal response detrimental to achieving your bodybuilding goals. So yeah, keep your macho man at home and focus on actually working out instead of putting up a monkey show at the gym. Try to squeeze out a smile or two and your body and all the people around you will thank you!
Dropping weights doesn’t make you look more masculine or powerful – instead, it is a sign that you got your technique all wrong, you are acting disrespectfully to your own body by putting it on the path to an injury and you annoy the sh*t out of everyone around you. Try exercising steady and controlled movements and the universe will pay you back with bigger muscles and a better personal brand image.