1 Corinthians 10:33 I, too, try to please everyone in everything that I do.. I don't just do what is best for me; I do what is best for others that many may be saved.
I think this is saying that we need to do for others... to get close enough to them to make them able to see God's goodness... to be kind enough to them even when it is hard for us.. even when it sometimes puts us in a place where we don't want to be, so that others can see God's goodness in us and want what we have. It is our duty to win others to Christ by our actions. This is what God has called us to do.