In Nightshade you need to go around doing Good Deeds (tm) to gain popularity. The game's crammed full of them, and some are hidden better than others.

Take this dinosaur skeleton in the museum for example.

If you examine it, you find a loose bone, which you can TAKE, but it causes the skeleton to collapse, which causes you to lose popularity, which is a bad thing.

But, you can then OPERATE the pile of bones left on the floor to create:

The correct dino! Which nets you more popularity than you lost.

The bone you removed was extra, so you get to keep it to use later on in your quest.

Good luck!