Pay Attention to Your Breathing
Observe your breath during the day. Check in with your breath every hour at a specified time. Slow down and tune into the quality and length of the inhalation, exhalation, and the pauses in between. Notice if the breath is smooth or ragged, shallow or deep.
Take several breaths through your nostrils and then through your mouth, observing the differences. Was the length of the inhalation and exhalation the same? Does your mouth feel dry as a result of breathing through the mouth? Which style feels more comfortable? Initially, breathing through the nostrils may be difficult.