Where are the good places to click?

Hint 1 of 6:

Try the cow's skull, near the bridge.  Very nice!

Hint 2 of 6:

Try the bridge, at the start.  Boom!

Hint 3 of 6:

Try the edge of the ravine.

Hint 4 of 6:

Try everything in the tent.

Hint 5 of 6:

Especially try the torch in the tent.  Drop it!