Practice observing without reacting. Bringing your focus intentionally onto your breath allows you to ground yourself in the present moment, and is the foundation for many other mindfulness exercises.
Get back in touch with your body. Pay attention to your body, and allow yourself to experience how each part feels, without judgment.
Learn to observe your thoughts and accept them, without reacting.
Slow down and appreciate the colors, smells, flavors, and textures of your food, without distractions.