A computer read out warns a person to watch where they're poking.
A word processor that someone is working on with a screen that says "Hey watch where you're poking that thing!"
A computer screen that telling the user to watch where they are poking something.
Computer keyboard with a screen that says "Watch where you're poking that thing!".
a computer keyboard with a small screen attached to it  that says to watch where you are poking that thing