2-Minute Tip: Always Assume Your Screen is Showing   I think we’ve all been in that meeting at one point where someone’s PC is connected to the projector and suddenly an embarrassing IM pops up. Or the meeting gets derailed by a 5-minute discussion about they’re wallpaper.   There are lots of notifications that popup on our devices — meeting reminders, email previews, Skype notices, Windows 10 Action Center updates,…