It is implied in the passage that the ability to pay a compliment _______.

One of the best ways to smooth relations with other
people is to be skilled at the art of paying a
compliment. The sincere, appreciative remark helps
the other fellow to realise his own inherent worth.
And, what is more, the ability to pay a compliment
boosts our own ego which is not a bad thing either.
We never forget a compliment that has deeply
pleased us, nor do we forget the person who made it.
Yet often the art lustre of praise is needlessly
dimmed by awkwardness in the manner of its giving.
Like all ventures in human relations, the art of paying
a compliment takes thought and practice. We have
all experienced the remorse of having our praise fall
flat because we chose the wrong time to give it or the
wrong language to couch it in.