How does online dating test the other person's deception?

Nowadays, many people in society choose to go online dating, and online dating is also full of uncertainty. How can I test whether the other person really likes you? The easiest way is to see if the other person is eager to promote the relationship with you. If I haven't contacted you for a long time, I don't know you very well, just send some beautiful photos or handsome photos, say that I like you, call you by various intimate nicknames, and want to be with you. Then such people are mostly insincere. He may just like you in the photo and don't care if you are really suitable for him. After all, care and love across the screen can be arbitrary. Another very direct way is to ask him out directly, but don't have sex. It may be a little shy to meet for the first time, and both sides will be very reserved. Then make an appointment for the second and third time. If every meeting is normal, it means that this person really wants to associate with you, not just seeing you in the photo.