Guild Wars 2

Guys!
i cant complete this hint…
it says “order your pet to heel, use special abilitys and attack your foe with f2”
did it on tons of enemies and nothing clicked everything switched pets all kinds of combos and nothing…any help?
what does that order your pet to heel mean?

Heel means come back to you.

During combat when your pet is fighting an enemy, or running up to attack one, press F3 and they should run back to you and then stay out of combat until you order them to attack (by pressed F1) or target a new enemy.

did all that during combat and the hint is still not finished …
from f1 to f4 using all skills even die and letting the pet res me all possible combination and still nothing…