Recoveries
You can replenish your character's stat Pools by resting, which allows you to take a recovery. You can take four recoveries in a day: one action, ten minutes, one hour, and ten hours. (Some characters have abilities that modify these numbers.)
When you take a recovery, roll a d6 and add your tier to see how many points you recover. You can divide these recovered points among your stat Pools however you wish, up to your maximum in a Pool. For example, if your recovery result is 5 and you're down 6 points of Might and 2 points of Speed, you can recover 5 points of Might, or 3 points of Might and 2 points of Speed, or any other combination adding up to 5 points.
When you use a recovery, you get the benefits from it when you complete the entire recovery time. For example, if you use a ten-hour recovery, you get Pool points at the end of that ten-hour period. If the recovery time is interrupted (such as if a creature attacks you), after the interruption you can continue the recovery and get its benefits when the full time is completed.
You can use your recoveries in any order. For example, you might use a lot of Pool points during a battle, take a ten-minute recovery to get some of them back, spend more Pool points while negotiating with some pirates, take an hour rest, get in another fight, and use a one-action recovery during the fight.
You could even use two recoveries back to back, like having a ten-minute rest followed by a one-hour rest.
You choose when you take your recoveries. For example, just because another character is spending ten minutes resting doesn't mean you have to use your ten-minute recovery at that time.
Usually your ten-hour recovery means you're stopping for the night to eat and sleep. When that rest ends, you're starting a new day and have all four of your recoveries available again.
You can use your one-action recovery as a Last action (even if you're not in a round-by-round situation) to get an additional +2 on your roll.