Friday Evenings: Slack Key Guitar Concerts.  Traditional Hawaiian slack key guitar and `ukulele concerts. August 2 – For the Birds; August 9 – Slack Key Story; August 16 – Heart of Slack Key; August 23 – Kauai Slack Key; August 30 – Dreams Come True.  Free gift drawing.  Tickets: $20 ($15 keiki/seniors).  A portion of the proceeds supports the Hale Halawai Ohana `O Hanalei.  Hanalei Family Community Center, 5-5299 Kuhio Hwy, Hanalei.  4 to 6 p.m.  For information and reservations…