Mountain pose may not be as famous as Downward Facing Dog, but it is every bit as important. This is
a good time to talk about alignment, which is the way that your body parts are ideally arranged in
The alignment in Mountain pose draws a straight line from the crown of your head to your heels, with the shoulders and pelvis stacked along the line. Every person's body is different, so focus on rooting down with your feet and lengthening up with your spine.
A yoga teacher can talk you through this in class, reminding you to slide your shoulders down your back and keep weight on your heels.