手 My hands are so cold when typing, I ask my friends if there is any dark technology to recommend hand warming.

I was guilty that I had accidentally pitted a simple girl today.

Talking about sm in the group, and the girl talked to me privately after a while, what is SM?

I am embarrassed, just say, insomnia.

Then I saw her in a circle of friends after a while. She has always been SM recently and can't stand it anymore. Can some friends recommend some methods?