The best company sometimes leaves you with more energy than the conversation used.

Time with people is usually assumed to be a withdrawal, something spent from a limited store. With certain company that arithmetic reverses. You talk for two hours and stand up steadier than you sat down, because nothing was being managed, defended or performed, and interest was flowing both ways.

Think back over the last month and sort your time with people by how you felt afterwards rather than by how good the plan sounded. Put more of your calendar near the ones that returned something, and be honest with yourself about the ones that did not.