If you are unsure in a crash, call your insurer and ask them for steps (sometimes it’s on the card). Don’t be pressured to skip those steps, if anyone disagrees tell them “I’m just doing what it says on the insurance”
Don’t ever admit fault, even if you think it is your fault (sometimes it’s not!!), let insurance and lawyers figure it out. It’s generally ok to talk to other party to make sure their health is OK. Take lots of photos of the scene.
Unsolicited advice - get a dashcam. I’ve heard stories change many times as they flow through the claims process and evidence helps stops things becoming unfair.
Oooh this is a good one!