When news of a sighting reaches other watchers and waiters, there may be a glimmer in the bored eyes, a stirring, murmur, buzz that causes chatter, movement, responding to the attention-grabbing edition.

One, the next one and another team up to trumpet what’s been spotted as they change course toward the distant enticements of narrative and discourse.

Signals and semaphore, dit-dit-dash and flashing beams, sat-nav and sonar, public and private media, chat and chivvying: an interlacing of interest and intensity knits around needle points, patterning.