I want to use another passport. Where can I find one

Hint 1 of 4:

Did you OPERATE briefcase to open it?

Hint 2 of 4:

Are you in a private, enclosed place?

Hint 3 of 4:

Did you "OPERATE CALCULATOR" to expose the hidden bottom?

Hint 4 of 4:

You can make a new passport with the forger on the right.