Watch Your Head
There's a movement fault that we're always correcting at the gym. Both novice and advanced lifters do it, and I catch myself doing it still, after many years of lifting. If you become aware of this, it will improve your movement quality.
Don't look at your feet.
Too often, during kettlebell swings, deadlifts, ring rows, step ups and even squats. People place their focus on the ground between their feet. Everything is connected, so this can effect other parts of your body downstream. Put your head so eyes are looking out straight ahead. This will upgrade the quality of whatever exercise you're doing.
Don’t look too high up either. Instead, find a spot that is comfortable, and has no effect on the position of your spine. Too much movement in either direction is not good.
Whenever your training be sure to audit on where you're looking, and what your head is doing.
Justin Miner