Web Earth Online

Hi When i was playing web earth online a coyote kept following me it was a npc and it kept followng me where ever i go,what is the coyote trying to do?

What kind of animal are you? It could want to hunt you.

If you are a coyote and rank one, and used the Noise button, then any coyotes in the pack with the same name as yours will follow you. If you mated with it, it will follow you wherever you go until you enter a den- in which it'll follow you and wait for the pups to be born.
If you aren't a coyote or not rank one, then it probably wants to eat you for dinner. I suggest hiding in a den.

If you successfully mate with an NPC, they will follow you till you enter an appropriate breeding site.
If you attack an NPC, they may follow you and attempt to attack you in return.

Those are two instances of when an NPC will follow a player deliberately in game.