A This is a great question. Lose the T-shirt! Add a blouse or tailored shirt, or even a jacket; look for a trendy or bold necklace and pair it with a belt and high-heel shoes, then you will be ready to meet and greet the world!
A What with cellular phones these days, the lines of etiquette become a little blurred. It depends on the relationship you have with the person, if that person is living with parents or with a spouse, and then I would say 10 p.m. Always show respect for the occupants of the house.
A All accidents should be accompanied by an apology, therefore, absolutely; you must quickly apologise for unintentionally disturbing this person.
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