Consider these relaxation techniques from Harvard Health to reduce stress in an open environment.
Breath focus. Take long, slow, deep breaths. As you breathe, gently disengage your mind from distracting thoughts and sensations.
Body scan. This technique blends breath focus with progressive muscle relaxation. After a few minutes of deep breathing, focus on one part of the body or group of muscles at a time and mentally release any physical tension you feel there.
Guided imagery. Conjure up soothing scenes, places or experiences in your mind to help you relax and focus. This technique may help you reinforce a positive vision of yourself.
Mindfulness meditation. Sit comfortably, focusing on your breathing, Bring your mind's attention to the present moment without drifting into concerns about the past or the future. This may be helpful for people with anxiety and depression.
Sample several techniques to see which one works best for you.