If you try to stand on one leg, focus on your belly button. This makes it much, much easiert. But I doubt that this trick will have any influence on your survival (maybe by placebo effect?).
(source worked in a funeral home back in my youth)
Focus your eyes?
Or do you mean your attention?
[0] https://www.professionalptandtraining.com/balance-strategy-b...
[1] https://www.neurolab360.com/blog/balance-and-proprioception