Be gentle and let her take her time to adjust. No sudden movements or loud noises. If she doesn’t want to be touched then it’s best to not touch her. She’ll adjust eventually.

When I encounter a new cat, I offer my hand for a sniff, and if the cat acts scared or foes away, then I leave them alone. If they seem chill with it, I touch them a bit and see how they react.

I recommend reading or watching videos about cat body language. Also, remember treats and the slow blink!