1.
Coming and going through windows instead of doors:
2.
Having a bedroom that looks like the Pottery Barn catalog:
3.
Or, conversely, covering every square inch of their bedroom walls with posters:
4.
Carpooling with friends on the way to school:
5.
And driving shiny new cars instead of clunkers:
6.
Either waking up hours and hours before school starts...
7.
...or running so late they don't have time to finish breakfast:
9.
Slamming their laptop shut without raising suspicion:
10.
Bumping into someone at school and spilling their bag in the hall:
11.
Never, ever having homework:
12.
The popular girls walking exactly like this:
13.
Also, girls winding up in the guys' locker room:
14.
Sitting on the rooftops of houses:
15.
Chugging liquor like it's nothing:
16.
Always hanging out at diners like it's 1950:
17.
And finally, dressing like 30-year-old businesspeople: