3. Walking meditations.
This one gets the body involved. It can be outside or simply as a back and forth pacing in a room. Pay attention to the movement of your legs and breathing and body as you walk, and to the feeling of your feet contacting the ground. When your mind wanders, just keep bringing it back to the process of walking and breathing. Meditating outside in this way can be difficult because of the distractions. If you do it outside, find a quiet place with level ground.