What should a girl do if she can't tell whether the other person is joking or serious?

Ordinary acquaintances will see through her, read her, understand, and try to make fewer jokes and avoid misunderstandings. And a person who doesn't know the inside story and is joking is neither deep nor shallow, so what he is looking for is the pumping type. As for her, I suggest that she communicate more with people and take part in some meaningful group activities, so that her views on people will be more interesting, know her face and argue for a thousand times, so that all kinds of people can see at a glance the gentlemen, villains, people and attitudes, and still have a clear sky!