When you enter the marketplace near the start of the game, go south east (nor far) where you see 2 parents (Paja and Kellenor) and a child (Jherem). Talk to the parents first asking questions about Jherem, then talk to Jherem asking him about where he came from until there is no dialog left except for the repetitive ones, then talk to the parents again, asking questions about him continuously.
I am not sure if this is missable or not if you choose the option to not continue asking throughout the various dialog.