"WeChat" is new mobile communication tool. It supports sending voices, videos, photos and text . You can also do group chats, or you can find new friends nearby to talk to.
Wherever they are, people can also find a "stranger" to talk to shaking the phone. The system will find out others who are shaking their phones at the same time. Another function (功能) is that WeChat can make us for people who live nearby, and show the distance. I like this function best it can help you to find more people who you may know.
Recently, I read news that some stupid girls met guys by shaking their cell phones and some incidents (事件) happened after they met. So I suggest WeChat users should learn to protect and not trust strangers so much.
Technology has already made life become and more comfortable, and at the same time it us some disadvantages. Therefore, being careful is necessary.