OK, you don’t have to wear your grandpa’s clothes to play shuffleboard at the Orlando Shuffle, but retro attire is encouraged. Every first and third Saturday of the month starting at 7 p.m., you can grab a tang (the stick) and slide some biscuits (the pucks) across the courts at Beardall Senior Center for free. For maximum fun, though, a Hawaiian shirt and high-waisted pants are essential.