But if you want some oldies-but-goodies to read on a lazy afternoon in the park -

To make you (look) more intelligent
(wear your glasses instead of contacts for these)
George Orwell - 1984
Aleksandr I. Solzhenitsyn - The First Circle
Margaret Atwood - The Handmaid's Tale
Edith Wharton - Age of Innocence
Ray Bradbury - Farenheit 451
J.D. Salinger - Catcher in the Rye

To pick up chicks (see above)

To pick up dudes
Nick Hornby - High Fidelity
Michael Chabon - Adventures of Cavalier and Clay
Mario Puzo - The Godfather
Stephen Chbosky - The Perks of Being a Wallflower

To stew in angst
Jean-Paul Sartre - Huis Clos (No Exit)
Joseph Conrad - Heart of Darkness
Peter Shaffer - Equus
Choderlos de la Clos - Les Liaisons Dangereuses
William Golding - Lord of the Flies

For your inner child
Ellen Ranskin - Westing Game
Phillip Pullman - His Dark Materials Series (Golden Compass, Subtle Knife, Amber Spyglass)
Roger Hargreaves - Little Miss Sunshine
Antoine de Saint-Exupery - La Petit Prince
Anna Brashares - Sisterhood of the Traveling Pants
J.M Barrie - Peter Pan

Just Read These
Tobias Wolff - Old School
J.M Coetzee - Youth
Margaret Lawrence - The Diviners
Mark Haddon - Curious Incident of the Dog in the Nighttime
Arturo Perez-Reverte - Club Dumas
Jeffery Eugenides - Middlesex
Donna Tartt - Secret History
Kazuo Ishiguro - Never Let Me Go
Edmund Rostand - Cyrano de Bergerac