The tourist information is offering one going away gift. Try to take one. You need to talk to the clerk.
This is the low-spoiler guide for "Going away gift" puzzle in Gibbous - A Cthulhu Adventure. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.