Marcelo wishes that his students utilize their energy effectively and refrain from taunting, unnecessary posing, or outward displays of perceived confidence; e.g. showboating, excessive and intent-less ostentation, exaggerated aggression, and overtly animated behavior. Even at the highest levels of sport competition, athletes fall prey to showmanship and playing the psychological tactics of intimidation before the start of the match. Conserve your vitality for the purpose of actually applying technique that can lead to victory rather than coddling your ego with an act of pseudo-dominance.