Countersteering is something that you needn't think about- you do it automatically when it is necessary- even if you've never heard of it. If that weren't so, you'd be hearing of a lot of crashes caused by people trying to counter steer when they shouldn't, and vise-versa. In fact, I wouldn't even think about it when riding, because if your noggin tries to over-ride your natural responses to the physics involved, you may just find yourself trying to countersteer when you shouldn't, and then crashing as a result. Just don't think about it. You don't need to think about it.