Friday is Pump It Up Pop In Playtime for preschoolers through kindergarten at Pump It Up, 729 A. W. Lumsden Road, in Oak Park Plaza in Brandon from 10 a.m. to 11:30 a.m. The session promotes social development and physical fitness while bouncing, sliding, climbing, and jumping on Pump It Up's giant, soft, interactive inflatibles. The cost for children age 2 to 6 is $8. Reservations are not required. Parents are free and are required to accompany the child. Socks and a signed waiver are required to play.