My god, of all the things that I could call important in this life, perhaps authenticity (or perhaps better stated as sincerity) is the most important thing.
When people say you are real or the real deal, this is what they mean.
When people know where they stand with you, it’s because you are this way.
When their eyes say that they care, even if their words don’t, it’s because you have been this way with them.
When they reciprocate with support, honesty or integrity, it’s because you have demonstrated those values to them.
With anyone of good character and compassion, you will get out what you put in.