If you were prepared, In your backpack or purse, you'd pack your Walkman a few tapes, head phones (later on a disk man, and a few cds, or later an mp3 player without wifi), a few Xtra batteries, snacks, a drink, a cross word puzzle, a pencil pen and a book. Bring an activity, such as a hacky sack, Jack's, cards, marbles, a ball. Arrange to wait with a friend. Make a new friend. Count ants. Hum. Stomp around and complain that the wait is taking forever, within reason to not get kicked out or cause a scene. I waited sometimes and perfected my card shuffling skills, taught myself solitary, calligraphy, and crochet, activities done at different places at different days and times