how can you tell what abilities are activated abilities?
602.1. Activated abilities have a cost and an effect. They are written as “[Cost]: [Effect.] [Activation restriction (if any).]” The activation cost is everything before the colon (:). An ability’s activation cost must be paid by the player who is activating it.[indent]Example: The activation cost of an ability that reads “, : You gain 1 life” is two mana of any color plus tapping the permanent that has the ability.[/indent]
No, I am not a judge. That's why I like to quote sources such as the rules that trump judges.