Now that most of the enlightened world treats sexual inclinations as just another personal attribute, we are amused at the elaborate signaling once necessary to convey one’s proclivities. The rituals must look rather normal to the casual observer but must be informative for the receptive observer. See how they are done by one who is a haughty aristocrat with impeccable taste. First there is the mating dance.
I turned my head and saw a man of about forty, very tall and rather stout, with a very black moustache, who, nervously slapping the leg of his trousers with a switch, was staring at me, his eyes dilated with extreme attentiveness. From time to time these eyes were shot through by a look of restless activity such as the sight of a person they do not know excites only in men in whom, for whatever reason, it inspires thoughts that would not occur to any one else–madmen, for instance, or spies. He darted a final glance at me that was at once bold, prudent, rapid and profound, like a last shot which one fires at an enemy as one turns to flee, and, after first looking all round him, suddenly adopting an absent and lofty air, with an abrupt revolution of his whole person, he turned towards a playbill in the reading of which he became absorbed, while he hummed a tune and fingered the moss-rose in his button-hole. (II,452)
Then there are the visual clues, subtle but revealing.
The suit he was wearing was darker even than the other; and no doubt true elegance lies nearer to simplicity than false; but there was something more: from close at hand one felt that if colour was almost entirely absent from these garments it was not because he who had banished it from them was indifferent to it but rather because for some reason he forbade himself the enjoyment of it. And the sobriety which they displayed seemed to be of the kind that comes from obedience to a rule of diet rather than from lack of appetite. A dark green thread harmonised, in the stuff of his trousers, with a the stripe on his socks, with a refinement which betrayed the vivacity of a taste that was everywhere else subdued, to which this single concession had been made out of tolerance, while a spot of red on his tie was imperceptible, like a liberty which one dare not take. (II,454)