Use the penguin thingy
Breathe
Do not stress
Make notes on technique etc as well
Have patience
Stay calm at all times
Take a cheap bottle of water and a positive mindset
Also bring a working pen, a small notebook, stuff to eat and a friend who can take photos
Do make sure to have some spare money in case
Focus on the lesson
Smile at the teacher
Speak clearly and slowly
Know your limits
Practice often and little whenever possible
Keep fit
Be healthy
Relax
Wear appropriate clothing
Develop your skills safely on the ice first