As long as the head and shoulders are square to the pitcher, that's what matters. Toes could be facing any direction, but usually, yes, facing the pitcher. I don't teach squaring the entire body. I have them bunt the same way for a hit or a sac. Squaring the body doesn't make bunting any more effective. Keep your feet in place and just pivot them toward the pitcher.
The bat should be held level at the top of the zone. If it's over the bat, it's a ball.
Moving forward in the box gives a better chance of keeping the bunt in fair territory.
Get the arms out in front and let the ball hit the bat. I also don't teach "catching" the ball with the bat. No need to deaden the ball and it usually leads to foul balls when the bat is moving away from the ball.
Bunt strikes. Bend at the knees to adjust down. Keep the bat level and bunt the top half of the ball. Direct the ball by using the bottom hand as a tiller. Knob pointing to third base for bunts to first. Bat head pointing to first base for bunts to third.