(Just trying some random things and sorry for the short post xD)
Midori looked at the marked clue. If they are gonna find clues, well i'm gonna do that too but I don't have any skills to find clues around here unless I used my talents. So I opened my Talent Window to see what possible talent I could use to solve this puzzle. "[b]Talent Window[/b]" I muttered then my talents appeared. Lemme see umm, I have Acrobatics,Animal Handling,Appraisal,Climbing,Crafting,First Aid,Melee Weaponry,Negotiation,Observation,Performance,and Stealth. Among these talents, I think the Observation talent might do something,somehow. So I used my Observation talent by looking at the 4 stone stands repeatedly. My observation talent is low but It could do something.

Finding nothing, I returned to the coin mark. I removed the coin mark and looked at the small button that Sumato found. Wait, I can't press it now! I must decide first. What if that this is a trap?. We will fail the quest then it's gameover. Should I? or Should I not?. However, I don't wanna take risk on this one but we have no choice. So I pressed the button recklessly without everyone's decision.