Can we add to the Gum wall? Or is it just for looking at?

Add, never take.

You can add to, just be careful when sampling.

You can add, the more the better :)

You can add

Yes..add, add, add.

You can feel free to add. They do clean it off on occasion however.

You can.. There were stores in the entrance selling Gums

Add away. That is why it is there.

You can definitely add.