Boater or fascinator? A hat is said to bring good luck for those who are celebrating the 150th run of the Kentucky Derby, (rather than Star Wars Day) on May 4. Derby style advises that the topper dictates the rest of your wardrobe. A flamboyant hat may call for a more streamlined outfit, where a simple chapeau invites a flashy ensemble. Whatever you choose, there’s a spot in Boston to show it off. The festivities this year range from drop-in drinks to elegant soirees. Here’s a round up of top spots for watching the most exciting two minutes in sports.