Agility(A):This is manual dexterity and nimbleness.
Speed: The average of your Agility and your Constitution Traits, or (A+C)/2, is your base Walk Speed in yards. You may Walk and also take an action on your turn. When moving only at Walking Speed, you may move before and after your action. Run = Speed x3yds. Running takes your entire action for your turn. Your overland Travel Speed = Speed /2mph.