Indeed adults as well as teens report that they feel their phones vibrating.Even when they are not.This is a well known phenomenon, it's called the phantom ring.

　　确实是，成人和青少年们说，他们会察觉到电话的震动，甚至当手机没有设置震动时也是这样。这是一种很普遍的现象，叫做幻觉铃声。