1. Maintain a vague distance
The person who likes you will remember seeing you all the time. If you keep him at arm's length, then he will definitely not be able to bear it, especially if you have not yet established a romantic relationship, this tactic will definitely work. If you don't love you, then you won't notice whether the distance between you is far or near.
2. Treat him with tenderness
Generally speaking, a man does not refuse a woman's tenderness, but if he doesn't like you and doesn't want to delay you, the more tender you are towards him, the more afraid he will be of you, perhaps because he is afraid of losing your friendship, or because he doesn't want to waste time on you. If he accepts and enjoys it, he likes you, provided that he is a gentleman and does not play with other people's feelings.
3. When you are in danger
A truly loved one can do many things for him, especially in times of crisis, never giving up, taking care of everything, being able to step forward, and making you feel warm. If you encounter major trouble, he always makes excuses not to help you, and after the trouble has passed, he stays by your side as if he had nothing to do. Such a person, you can leave him.
4. Be indifferent to him
How can a woman test a man's sincerity? You can be indifferent to him. Sometimes, you can be as cold as you can be to him. "If he can stand your coldness towards him, it means he doesn't mean anything to you. He doesn't care if you're cold towards him.". "If he can't stand your being cold to him, it means he's interested in you. He cares if you're cold to him.".