This is now an outdoor event, thanks to the health Nazis down at Dallas City Hall. But a quick date with a Marlboro on the cascading steps outside the Angelika at Mockingbird Station makes you happy you had to step out. If you have to ruin your health, you might as well do it at the most interesting crossroads in the city. Besides the film crowd, which is constantly coming and going, the DART line brings in a diverse enough bunch that there's always someone to watch. The steps themselves have plenty of smokebird perches--various steps and fountains--but you'd better act fast. In the near future, we're fairly certain, it will be illegal to smoke sitting down.