so i know a guy who got interested to speedrun oneshot cus of me and ive showed him some of the skips and the tools to use but what kind of advice or tips should i give him more?

I assume he's a new runner in general, in which case, all the normal things apply;

Make notes that helps you, even though Oneshot already has really good notes already. Practice, even practice segments. Fortunately this is a short enough run.

And, don't reset when you make 1 mistake. You will always make mistakes, and practicing the end is way better than practicing the start of the run.