I have worked on directionals outside of herding lessons. I'll work around a bunch of corners. Dog is in a sit/down/stand, toss treat around corner, and give command (come by or away). I'll also use it during fetch games. Dog stays in a down, I throw ball, wait for it to stop, send dog, down, call back, send again, and as she hunts I will give directional commands.
Blackthorn's Piper RE, NA, JHD (13 Feb 11)
Blackthorn's Stryder RN (19 May 12)