I often look up from my computer to a scene like this.
I'm sure many of you experience the same phenomenon. I find it unsettling. How long have they been staring at me like that? And what fascinating thing do they suppose I'm going to do that requires such rapt attention? I feel like I should jump out of my chair and burst out in song and dance or suddenly produce a flurry of tennis balls and frisbees. It's a lot of pressure.
Sometimes I'll look up and they'll all be sleeping, seemingly out cold, then as soon as I so much as turn my chair to get up their eyes simultaneously spring open and the stare fest commences. Perhaps they're hoping to hypnotize me into giving them bones or an extra meal or a trip to the coffee shop for a latte and chocolate croissants. With extra bacon. Maybe I should try to hypnotize them back. Or just make good with the bacon and they'll leave me in peace.