Virtue is multifaceted for Smith, but his big three are prudence, justice, and beneficence. These are the traits that make us lovely and that in turn makes us respected and admired by those around us — the traits that make us loved.
What does Smith mean by prudence, justice, and beneficence? For Smith, prudence means, in modern terms, taking care of yourself, justice means not hurting others, and beneficence means being good to others. That's not a bad trio for thinking about how to live the good life.