Some countries have cultures so different to what Westerners are used to I would say the first thing is to respect the cultures of those countries. They may not have 'democracy' but some cultures don't do too well with it.
Another big support for justice and one we can all take part in is ethical buying/trading. Find out how the shirts you wear were made. Were they made in 'sweat shops'? Or in places where the wages may be lower than where you live but it's a real livable wage.
Human rights are another big issue for me. Do people have the right to worship as they see fit?
I don't think any country lives up to all these but we can keep working on it and as we individuals try to live this way we"ll take the rest of the world with us