Yes. Typically I think of “good” actions as those that can be performed on/to/with an object and involve distinct specific motion or position by the subject.
“Playing” would be much too vague for me.
Something like “Reading” would be very difficult to animate.
Something like “Bowling” would be great, because you could imagine the motion of rolling a bowling ball, without needing the ball. During memorizing, you can substitute whatever object you need in place of the bowling ball, so like if the object was an electric chair, you’d picture your person holding an electric chair and winding up and bowling it away.
Similarly, “sitting on,” "stomping on, “biting,” or “rocking” can be performed with or to any object, and would be great choices.
This is actually great! More about this in a bit…
If you do either if these things you’re making it harder to eliminate extra conversion steps and develop direct associations.
The goal is to develop INDEPENDENT associations between the person and the NUMBER, the action and the NUMBER, and the object and the NUMBER. You should try to AVOID learning 11 as “11 = Devan is Boxing on/in Heaven.” You should learn it as “when 11 is a person it is Devan,” “when 11 is an action it is Boxing,” and "when 11 is an object it is “Heaven.” This way the association is reinforced from each element directly to the number.
If you have to encode 11 in the action place and you have to go through extra steps of first relating it to the person “11 = Devan → Devan’s action is Boxing” then this is way less efficient than being able to go “11 action is Boxing.”