One of the simplest and easiest ways of practicing presence (ideal for beginners who do not have much previous practice) is the exercise of sensing.
You can practice this exercise on your own or in a group.
Just sit on a chair in a quiet room where you will not be interrupted. Come to the front of the chair, without leaning your back against it. Straighten your spine. Place both your feet relaxed on the floor, and place the palms of your hands on your knees.
Close your eyes, and begin to pay attention to the sensations in your body.
Start to slowly circulate your attention, from the fingers on your right foot, towards the heel of the right foot, moving slowly towards the right knee, the thigh, the right part of your pelvis, and the sitting bone as it touches the chair.
Move your attention slowly and carefully to the right side of your back, towards the right shoulder, the muscles of the arm, the right elbow, the forearm, the right wrist, and to the palm and fingers of your right hand. Transfer your attention to the left hand, sensing the body in the same way – towards the left wrist, the forearm, the left elbow, towards the left shoulder, then down the left side of your back, towards the left pelvis, and the sitting bone. Slowly sense the left thigh, the knee, the left ankle, and the heel, becoming aware of your left foot and the toes at the end.
If your attention falls at any time during this sensing exercise, be persistent, and continue from where you lost the attention and sensations.
Do not push or put pressure on yourself for not practicing well or for losing attention. This is not an easy practice, although it sounds very simple. Mastering it takes years of committed practice. Just keep your intention of sensing the body and staying present.
If you are a beginner, I recommend that you find a partner or a group that will support you during such an exercise. Start with 5-10 minutes and gradually, when you feel ready, increase it to 15-20 minutes a day.
In case you run a creative dialogue, if you notice that the system is unstable, that people are downloading, or monologues dominate, stop the talk and ask the participants to do a sitting practice. This will center you all, and put you in a better condition to continue.
 The practice of sensing is not the same as meditation. They are very similar, and have similar benefits for practicioners. I recommend the sensing practice every time you decide to work with a creative dialogue.
RELATED & RECOMMENDED READING
Spacecruiser Inquiry: True Guidance for the Inner Journey (Diamond Body Series), A.H. Almaas
Inexhaustible Mystery: Diamond Heart Book Five, by A.H. Almaas
The Point of Existence: Transformations of Narcissism in Self-Realization (Diamond Mind Series, 3), by A.H. Almaas