I try not to interrupt. My player's are far too entertaining for me to break in with mundane things likes the campaign.
As a DM, I have found myself doing one thing that breaks the moment. Sometimes, I'll mention something of what is going on behind the screen--such as the result of a die roll: "She won't respond to your Intimidation: your roll was really low." Stupid. It happens rarely, but I feel like an amateur when it does.
I try to never have situations where players who are expending their valuable free time at the table have to twiddle their thumbs. Everyone knows it comes up once in a while, but everyone at my game helps to make sure everyone has fun. If the party splits up for any reason I always cut back and forth so even if their just sitting around a campfire I can keep them somewhat involved.
Tormenet

As a DM, I have found myself doing one thing that breaks the moment. Sometimes, I'll mention something of what is going on behind the screen--such as the result of a die roll: "She won't respond to your Intimidation: your roll was really low." Stupid. It happens rarely, but I feel like an amateur when it does.
I try to never have situations where players who are expending their valuable free time at the table have to twiddle their thumbs. Everyone knows it comes up once in a while, but everyone at my game helps to make sure everyone has fun. If the party splits up for any reason I always cut back and forth so even if their just sitting around a campfire I can keep them somewhat involved.
Tormenet