The correct answer to this open question is the following.
Effective communication of values may help me build a sustainable relationship with my friends because a true friendship is based on open communication, respect, tolerance, and support in good times and bad times.
This means that first of all, you have to be totally honest about who you are. You cannot pretend to be someone you are not. That is the foundation of what you are about to offer in a relationship.
You set the example living your own values, so you will have the moral status to ask other people to live by their own values so you can base your relationship on trust.
No trust, no friendship. As simple as that.
So being the first to live your values, you can ask other people the same. To treat you with respect, being tolerant to diversity, and be accepted as you are, because you will have to accept your friends as they are.