Dumb Lucio question incoming: When you have the healing up is it just an aura that heals, or do I need to press another button? Same goes for Speed boost. I like him but I know Im not using right.
His boosts are passive. You don't need to press any buttons unless you want enhanced healing/speed boost. Just be around people. If they are in a certain radius and can see you, they get the benefit. The number on your screen is the number of teammates being affected by you.