If a gentleman sees a lady alone hesitating at a bad crossing, or leaving a carriage at an awkward place, he may offer his hand to assist her in crossing or alighting, raise his hat, bow, and pass on. A lady may, with perfect propriety, accept such assistance from a stranger, thanking him, and returning his bow. If a lady leaves an omnibus or car alone, the gentleman nearest the door should alight, assist her out, and enter the omnibus again. Gentlemen should always pass up the fare of ladies in an omnibus. A lady is not expected to recognize any acquaintance on the opposite side of the street. In a public conveyance, a gentleman should offer his seat to any lady who is standing, and the lady should thank him audibly for the courtesy. To turn his back upon her at once, and thus force her to accept the courtesy in silence or shout her thanks, is rude. A polite bow exchanged is a sufficient acknowledgment. Loud talking and laughing in the street are sure signs of vulgarity. Never look back after any one passing; it is extremely ill-bred. Staring is a mark of low breeding. Whispering in a public conveyance is excessively rude. Never call out loudly to an acquaintance who may be passing. "Cutting" is to be avoided, if possible. There are other ways of convincing a man that you will not know him; yet, to young ladies, it is sometimes the only means available to rid them of a troublesome acquaintance. Cutting consists in publicly ignoring, by deed, and, if need be, by word, the acquaintance of the offensive person. A stiff bow will usually effect the desired object; if not, a purposed non-recognition will probably succeed. It must be a very bad case where it is necessary to tell one you "have not the pleasure of an acquaintance" with them. A gentleman must never under any circumstances, cut a lady; an unmarried lady may not cut a married one, nor a young man an old one. George IV., when Prince of Wales, once cut Beau Brummell, with whom he had quarrelled. The pair met in St. James-street, each walking with a companion; the companions stopped to speak, but the Prince did not see Brummell. The latter, to be revenged, and knowing the horror the Prince had of being considered corpulent, said to his companion, in a stage whisper, before the others were out of ear-shot, "Who is your fat friend?" On meeting and passing people in the street, keep to your right hand, except when giving the upper side of the pavement as before mentioned. Let a lady walking with a gentleman have always the upper side of the pavement, even if he changes sides at every turning. Young persons, meeting elderly friends in the street, should wait for a recognition before speaking, and then bow respectfully. To nod carelessly at an old person is rude, if not actually insulting. If you meet two gentlemen in the street, and wish to speak to one of them, apologize to the other, and make the detention as brief as possible.