"Tom's Diner" by Suzanne Vega is a song about taking a moment to observe the people and life around you. It paints a picture of a diner in the morning, where Vega captures the conversations, interactions, and feelings that people have both with each other and with themselves. The repeated refrain of "doo-doo-doo-doo" is meant to evoke a feeling of nostalgia and reflection. The song ultimately serves as a reminder to take a pause to appreciate the beauty of life and all that it has to offer.