[ he stared at it dumfounded, watching her point at each option with expected ease. ]

So you can simply "post" anything?

[ he mused thoughtfully, his gaze drifting to the wall behind him and suddenly a light dawned within. ]

Ah-hah! I see it now. So it's just like a public message board for anyone who might take a moment to post a service or request aid. It's simple the format that's changed to protect it from inclement weather. How fascinating.

[ he paused and then turned a sheepish smile towards Pai after inspecting the screen another minute. ]

Uh, if you don't mind indulging me in one more request, do you mind showing me how to um, look up these strange posts that you mentioned?

[ he can guess, but why guess when he can be shown? ]