What is a disguise?

Disguise: 1) To modify the manner or appearance of in order to prevent recognition 2) Clothes or accessories worn to conceal one's true identity.

Two definitions from a dictionary.

The Female Disguise Site will look at all aspects of female disguise: physical appearance, mannerisms, costumes and accessories.

Physical Appearance

I think most disguises work when one shots for the middle. ie a norm or generic look, not necessary a remarkable or beautiful look.  Being within the norm range, but not remarkable, keeps others from conducting a closer inspection.

Women in disguise as other women have the easiest time, since women have a wide range of reasonable looks and will survive a closer inspection of their sex ie a quick additional look will not reveal anything wrong about their apparent sex.

Women in disguise as men have the advantage that an average guy look doesn't attract much attention and that an asexual or male look is considered acceptable for women even, if their disguise is pierced.

Men in disguise as women have the hardest time (I believe).  Men have a much smaller range of appearances that doesn't attract closer inspection and it is more difficult for them to survive this closer inspection ie a quick additional look may reveal more wrong about their apparent sex and cause further inspection.  Men can't survive this piercing of their disguise.  Puzzled looks can cause others to look again and the cycle continues.

So men must work much harder on perfecting the disguise, this doesn't mean it is not possible, just that more up front effort is required.