Or would the attempt perhaps result in disaster from the presence of others watching on board?

He did not stretch his legs in the presence of others.

Eventually, it got so he could feel the presence of others through the walls.

Even in the presence of others he was completely alone.

In the presence of others, people not under the drug, one should move with great care.

Unless it's absolutely necessary, I try not to do that in the presence of others.

I sensed the presence of others in the room about me.

Even in the presence of others, they walked alone; for them, nobody else really existed.

"Have I not told you before never to call me by that ridiculous name in the presence of others?"

Perhaps I shouldn't have brought the subject up in the presence of others.