An important lesson is to respect others, whether that is another’s personal items or even the person themselves. Everybody is unique and deserves love, even if they have a different view point to you.
When working in a team it’s important to listen and not shout over others, everyone has their own opinions.
Be a good friend to others, care about each other. If you see someone upset, go and ask if they are ok. If you also see someone being nasty to another child, make sure you tell them to stop.
It is also important to respect other people’s belongings and sharing is vital. If you enjoy playing with another person’s toy, be careful with it, just as they would be careful with your toys.