How does Edward Albee use imagery in Who's Afraid of Virginia Woolf??

The play takes place one late night on the campus of a small New England college, in the home of a childless, middle-aged couple. Martha is the daughter of the college president and George, her husband, a professor of history whose career has stalled. The two stumble in from a faculty party where it is obvious that they have already been drinking a great deal. Their conversation is disjointed, Martha making jokes that George ignores or appears not to understand. She chastises him for his behavior at the party: "you never do anything; you never mix. "