If I'm playing someone rated far above my own rating I play my main openings / defenses. In the likely event I lose it's a good lesson.
If you want to go all out for a win, you can try to make it as complicated as possible. That doesn't mean sacrifice or attack for no reason, but try to go for positions where this is possible (like castle opposite sides).
Playing defensive or otherwise for a draw is a good way to lose even worse than you normally would if they are "far above" your rating. If they're only 100 or 200 points above then this is fine.
I'm NOT asking for advice here as most of the games I mentioned are about half way through. So even if I wanted to ask for advice (which chess,com doesn't allow) it wouldn't help me in the opening or in my current position.
So what do you guys do when you play, in daily or otherwise, players far above your own rating? Do you play different openings, try over complicated tactics, or sit back and hold off every attack they make, or something else entirely? Or just play normally until they either slip up or beat you/force you to resign?