Using your hand works for most people
look at their pockets for signs of any vibration
No, legally teachers cannot search through your pockets without knowing you are breaking the law/school rules. In other words, if they just have a "hunch" that your phone is turned on, or a phone is in a pocket, they cannot search through your personal body unless they have seen you playing on your phone.
I have a pair of pajama pants without pockets. I also have some athletic pants without traditional pockets, just a little pouch that is inside the wasteband. And there are sweatpants / lounge pants without pockets as well.
Yes
Depends how big her pockets are
A phone
They are just to hold the fabric of the pocket together.
There are tiny pockets in the walls of the sigmoid colon, but there is no obvious inflammation of these pockets.
Anything you want really, you can have clothing, tees, balls, money, your phone, your watch, and umbrella on external pockets, food and drink.
pitta
Air pockets hold heat, so they probably have a lot of them.
Jeans without pockets became popular in the fifties in the United States and was introduced to the prison system to prevent inmates stealing from others.