You can switch the maneuvers currently granted by spending five minutes exercising and medidating. However, for the moment, you don't really have any options; there are only three maneuvers each of you except Suga qualify to use. The wearer of the ring has Moment of Perfect Mind, Sapphire Nightmare Blade, and Stance of Clarity, and the wearer of the vest has Punishing Stance, Steel Wind, and Steely Strike.

When you're level six, you'll also be able to choose from the maneuvers (for the ring) Action Before Thought and Emerald Razor, and (for the vest) Disarming Strike and Wall of Blades.