Tracking
Choose Tracking in the skills window. In the falling menu choose who to track: an animal, a monster, or a human. If succeeded, you will find out the direction of the specified creature, in case it walked past the place your hero is standing.
How to train your skill:
One of the easiest skills to train. Tracking animals comes in handy in a forest. Bind a button [Use skill (Tracking), CloseGumps].