Riko leading

Challenge #1 - Riko leading. Riko is very low energy (till he isn't). Not sure what to do there. He is an unbroken 3 yr old KWPN I imported November 1. He isn't very spooky, but I can't get him to walk fast unless I am outside the arena. So I have done a lot of the exercises outside the arena... I also can't figure out any real tension release spots. It's like he shows no emotions. Sort of odd for a 3 yr old...