Aziraphale and Crowley decided to take a look at the "geek subculture" and investigate this "fandom" business (all described with exaggerated quotation marks and ample bewilderment). Then they found a bench and discussed their findings over some Pocky.
...In reality, we were bored, didn't know what to do, wandered outside, found a bench, and snacked on Pocky. I was greatly amused by the idea of these two just hanging out eating Pocky, and returned later to the spot once we we'd met up with someone who could take a picture of us.
Aziraphale = myself
and picture taken by Good Omens © Neil Gaiman and Terry Pratchett