Second, click on the other person's circle of friends, and it will appear-click on the background of the opposite circle of friends. If "like this cover" appears (note that if you liked this cover before, it won't appear), there is no shielding, and the other party just sets dynamic privacy.
Third, click on the other person's circle of friends, and it will appear-click on the background of the other person's circle of friends, but there is no "like this cover".
Yes, he is blocking you! Fourth, click on the other person's circle of friends and it appears-but the other person has no cover, or the other person has never changed the cover, and the dynamics are still private.
(Some people in the circle of friends don't play. ) Either the other party blocked you for a while, because after blocking you, his cover will still be displayed soon.
Fifth, if the other person doesn't have a circle of friends for you to click on, then he really hasn't sent any messages, or he has deleted all the messages.