What if you're addressing part of the class, though? Like "y'all in the back, you need to get back to your work".
"You in the back" has the same level of specificity. Other options include (again) naming names or calling out a more specific location "You in the back row".
alt Hacker News
"You in the back" has the same level of specificity. Other options include (again) naming names or calling out a more specific location "You in the back row".