Script help with Callbacks

[Tanshaydar]

Look at Callback -> Calls the callback when entity is being looked by Player.
Interact Callback -> Calls the callback when entity is being interacted by Player.
Collide Callback -> Calls the callback when two different entities being collided (and when a Player enters an area, because both area and players are entities)
Use Item Callback -> Calls the callback when an item used on an entity.