Gents never wear brown shoes or tweeds after 6 P.M. It is crude for femmes to wear wrist watches with evening gowns. (If you've got to know the time, look into your boy friend's eyes.) Dolls who wear tight dresses shouldn't eat until they bust. If you have to open the zipper at the side of your dress or pop out at the seam, cut down on the intake, honey. You can load up again when you get back into the house dress, on the farm. No smart filly rolls her stockings. (Garter belts are a must--or don't wear hose.) For, when she's dancing and her skirt swishes around her knees, the bulge breaks the symmetry of the limb. Nylon all the way up is sexier and smarter. 31. INSIDE STUFF FLIRTING: Don't. If you do on the street, you're apt to be arrested, and in the subway, killed. MARRIAGE: Licenses are issued and ceremonies performed at City Hall, and in the Borough Halls of the outlying boroughs. A Wassermann test is necessary for bride and bridegroom and 72 hours must elapse between issuance of license and the fatal words. The nearest state where marriages are performed without delay is South Carolina. DIVORCE: There is only one ground for divorce in New York State: Adultery, proven by two eye-witnesses. A few uncontested divorces are finagled by collusion between husband and wife, the former allowing himself to be raided while with a paid correspondent. There are no residence requirements for divorce. Final papers are issued after 90 days. The guilty party in an adultery action (obtained anywhere) cannot remarry in the state without permission of a Supreme Court Justice. Most New Yorkers remarry in New Jersey. New York courts have ruled these marriages valid. CLIP JOINTS: To be avoided, unless you are looking for grief. These deadfalls, usually in old brownstone houses on side streets, in Greenwich Village or Harlem, operate without licenses. The sucker is steered by a runner or cab driver who promises "women." Bills are brutally padded, bank checks raised, drinks loaded with knockout drops. If you protest, you'll have your hair parted with a bottle. CURFEW CATCH: We're going to give you a hot tip. Don't say we told you, but if you have an unfinished drink (or even bottle) on your table at 4 A.M., neither the club nor the cops can make you scram until you've finished it. The law here does not require liquor be removed on the stroke of curfew--merely that the bar close, the music and entertainment cease. See you at 4:01. Though the legal closing is 4 A.M. daily, bars are required to shutter at 3 o'clock Saturday nights only (of all times). But clubs may sell food and entertainment until 4. What we noted about it being kosher to keep liquor on your table after the curfew, week nights, also goes for Sunday morn. Anything served before 3 may be consumed during the next hour, even after, if the weary waiters don't thumb you on your way.