Ankle gaiters are good for off road and fell runners because they are closer fitting than full length gaiters and protect you from water ingress.
Mid-length hooks that face out are the easiest to use.
You will also have to tighten the calf enclosure if you have full length gaiters. The enclosure may be a string you have to pull on or straps you have to buckle.
Make sure there aren’t any gaps left in your gaiters before going outside.