If you are showing up and going through the motions, you are participating.
Sorry you disagree, but if you drag yourself in there with the attitude that you don't want to be there and you're not going to put anything into it, your benefit will be minimal. And if that's good enough for you, then you have already quit on yourself. Training requires and repays discipline, and not just when you feel like it. And the other factor you have not considered is that lack of dedication is contageous, and it is unfair to your fellow students for you to give less than your best. Paying your monthly dues does not entitle you to kill everybody else's buzz. It's not good enough just to show up. Save your money and stay home. If you were my student, I would tell you that very thing.