You are quick on your feet, and have unusually quick reactions. Note that this doesn't make you move any faster, just react faster. You may use this trait whenever reaction time or quick thinking is involved. In addition, you may use this trait for a turn in combat to boost your action before everyone else, if needed. You may use this ability an equal amount of time as the value of this trait.
If you are looking for swift movement, look towards the Sprinter trait instead.