Replying to Tips for Teaching Beginners?

Yo ns, I have some friends who want to get into skiing this year, and have never been before. I’ve offered to teach them as I’ve been skiing for a while (15 yrs) and have taught and given tips to a few of my other friends in the past. I was wondering if there’s any small little details that an advanced skier might miss when teaching beginners? (beyond the basics of pizza, french fry etc.) Any tips or techniques for teaching would be appreciated.