Career Civil Servant here; I’ve lived this for 15 years…
If your’re private sector, then they’re obviously mildly different objectives and whilst the STAR(B=Benefit) is appropriate, if you’ve sat on the other side of the table then you have a big advantage (plus, WTF are you asking for advice the day before?? I locked myself in the house for 4 days practising my examples before my last interview 🙂 )
So in that regard, if it’s ‘day before’ advice you’re looking for, then advice is massively limited…
So just stick to this….
“I DID THIS. ME. ME. I DID xyz. ME.”
..and HOW. your behaviours. You invested time to speak to people face to face to understand what was important to them, which allowed you to deliver stuff. Etc..
The rest is up to you and your industry, but stick to your beahviours/what you did, and good luck.
It’s all bollocks 🙂