It's picking up clues as fast as you are giving them. If you get excited, the bear could too. It may change from being curious to being frightened. If a bear becomes increasingly stressed and aggressive, talk to it in a low voice. DON'T RUN .
Bears avoid antagonistic encounters by moving away from one another.
If the bear is not moving towards you, very cautiously try to move away. If your movement causes the bear to move towards you, stop and hold your ground. Bears may come close as they threaten and decide what to do. The bear is interested in you or something you have, and may cause you bodily harm. Yell and wave your arms or anything handy.