How to make NPC move when player is in a certain position

[Frostblade]

Does anyone know how to make it so that a NPC will move and talk only when your at a certain area and if they can make it look like they are leaving an area?

 

[Andar]

That is basic eventing - but there are several different possible solutions depending on what exactly you want (and you didn't describe enough of the situation for us to decide what the optimum solution would be.
It could be done by a simple player touch event (if the player needs to step on a specific tile), or it might need a more complex check for the trigger.

As a new user, I suggest you follow the link to the starting point in my signature and work through the tutorials listed there, especially the eventing tutorials.
That will probably take you a few weeks to learn everything, but it will speed up your later game making a lot.