You can get this in the town of Kuwaq Yaku; a town you come across as you progress the story.
Walk around the town and press
and if you see someone lights up yellow with a speech bubble over their heads. If you see that, approach them and press
Do this five times and bloop.
Some characters talk complete bollocks, others give you location info, so don't be surprised if you speak to, say, 8 people, to get your five!