I do the same but it's like a running commentary. That girl is squatting incorrectly, that girl should squat, that guy skipped leg day, He is using way to heavy of weights/swinging his arms, etc. Though the one that annoys me the most are the guys that think they are fitness expert training other guys when 1. All they ever work out is their arms and chest, huge belly and stick legs 2. Being over obnoxious about it