That my frens is called "The Look"
Nana has one too only it is the kind of look that put fear in my children when they rarely saw it come out.
Nana was more of a "lean in" and whisper things that had A LOT MORE results than yelling & when they got "The Look" it got really really quite! 😁
So funny, my kids actually practiced "The Look" and have since trained their kids in "The Look" & how to do it as well.
Something passed down thro 3 generations now.
You can walk up to my 31/2 yr old grandson and just say give me "The Look" and you WILL remember it.