How to distinguish love rat and what to do when you meet him?

Mainly identified by his background and personality.

1, find out each other's background before communication. You can introduce your friends to him and bring you into his life circle. If you don't check the background clearly, you may fall in love with a married uncle or a domestic violence man. 2. Understand each other's personality. Before giving his true feelings, contact with his friends, colleagues and neighbors as much as possible, inquire about each other's personality in many ways, and observe carefully in daily life to understand each other's personality. 3. Find clues from the message. If the other person seldom sends you messages, or never sends you messages, it can't judge whether he doesn't love you, at least it can show that you are not that important in his mind.