Not quite sure on the hotspots yet, but I managed to get some light walkup RP in with a Lala near Limsa, though it was random and started because the bugger was following me around, ended up getting errored out and lost connection mid conversation so hopefully he wasn't too sore about the sudden silence. I've had a lot of good luck with random walkups.

(To the Lala if you read this forum, ^.^;;; I'm so so so sorry.)