I think the best way here is to praise and appreciate small efforts of generous ness of your child :) This way they feel more confident and will also continue it going forward

Kids learn everything from their parents. Simple acts may impact the kids to grow up doing it without even thinking twice!

Kids are like a blank piece of paper so it’s important for them to see the actions we adults show them

By displaying that same behaviour. The effect can be long lasting

Exemplification is the best way to teach

Children learn best from examples shown

Teaching my kid that sharing is caring

Demonstrate and positive reinforcement

Have to be a good role model first

Practise it in front of the kids.