Distractions
Avoid busy environments, noise & notifications
Distractions are not a sign of disrespect online; they are the default state, and designing against them is part of your job.
Every participant in your session is sitting next to a phone, an email inbox, a second browser tab, and possibly a family member or a dog. In a shared room, social presence keeps people at the table. On a screen, no one can see what else is open, and the pull of other things is constant.
Reducing distractions is partly the participants' job and partly yours. You can ask people to close other windows and silence notifications. You can also design the session so that there is rarely a stretch where someone has nothing to do but watch. Active participation crowds out passive drifting.