Rosenberg regards "praise and compliments to be life-alienating." The praiser sits in judgement. Some use flattery for manipulative purposes, but even an honest compliment can misfire. Rosenberg wants to make sure that expressions of appreciation celebrate gratitude. Then when we receive such expressions we can choose something other than egotism or false humility. We can receive joyfully.
More cultural conditioning: "We tend to notice what's wrong rather than what's right." We can improve our lives by noticing what others do to enrich our lives, and taking time to appreciate it.
NVC-style appreciation has three parts: "We state (1) the action that has contributed to our well-being, (2) the particular need of ours that has been fulfilled, and (3) the feelings of pleasure engendered as a result."
"We are often uncomfortable with simple giving and receiving."