Note! If your school restricts physical contact, a smile or air hug will go a long way.
Think about the routine you want to use each day and just jump right in...
Do you call it circle time or morning meeting or??? Whatever you call it, choose an active song that you like and use it to get the blood going to the brain and release wiggles.
It's important to choose a song and do the same song every day. That way it will become an "indicator activity" and when the children hear it they'll know it's time to get the show started!
These are some of my favorite good morning songs:
Rise and Shine
Feeling Fine
Time to Get Up
https://www.youtube.com/watch?v=39__jCTwNt0