Along with the list mm posted, when I'm doing an outdoor gig - like tonight - I'll add more blues/shuffle tunes than usual ... also tunes by Eric Clapton, Billy Joel, Elton John, Van Morrison, Beach Boys, etc ...
Blue Bayou
Flip Flop Fly
Choo Choo Ch'Boogie
Kansas City
I do a Ben E. King/Drifters medley that goes over well: Rose in Spanish Harlem, Up On The roof, Under the Boardwalk, Save the Last Dance For Me ...
You could also get a good idea when you go see Uncle Dave ...
Basically, fun stuff ...