Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.

[EX Q]: How to describe a person in a word who keeps mentioning about his own life story or about himself for every topic that is being conversed? Be it interesting or boring, he has the ability to pick out something that has happened to him or he himself creates a chance to talk about himself. Edit: The person is not selfish. He does care for others. I am just saying that the person relates everything to his life and talks about it, that too not even in a conceited way. This person is experienced enough to relate everything to things that has happened to him.
[EX A]: Self-Absorbed This is similar to self-centered, but perhaps has less of a negative connotation. A person who talks about themselves a lot may simply be introverted, and socially awkward, and therefore not have a lot else to talk about. They may also try to give themselves a sense of social relevance, not realising that it is actually counter-productive.

[EX Q]: I often read the expression 'would of' used instead of 'would have'. Each time I read it I get annoyed so I googled it and found out -as I expected- that it is an incorrect way to say 'would have'. Now, there are a lot of brilliant slang words/expressions, so my question is, why do people use this one? It's so annoying to read, stupid and clearly wrong, it is pointless, why did they come up with this expression? Edit: I don't think my question is a duplicate as I didn't ask how can somebody use it (since I know it's incorrect and I know that I can use it with commas giving it a different meaning) but I asked why and how people came up with this expression.
[EX A]: Correction: what annoys you is people writing 'would of' when they are saying /wdv/, which is the standard pronunciation of the contraction would've. The vowel of the preposition 'of' is almost always reduced in actual speech, yielding /v/. Thus 'would've' and 'would of' are homophones. So no surprise that some people spell it that way, even though it makes no grammatical sense. Would've can be even further reduced to /wd/, which some people spell woulda as a kind of phonetic eye dialect to represent actual speech or set an informal tone. The same goes for the modals, shoulda, coulda, musta. Spelling as it sounds can yield amusing results: Along the way the details of his past are sordid out and he realizes that what he once thought about his parents isn't the truth at all. Amazon.com Review. A speaker of British English, of course, would never write sorted in this manner, but with an American flapped t, it's a perfect fit.

[EX Q]: I often hear US citizens say something like this: <Some phrases>. Period. What does period mean when it appears in a sentence by itself in this type of situation?.
[EX A]:
Period at the end of the sentence means, the things said in the sentence are definite and no change is allowed. For example, 'I want the document without any errors, period' meaning that there should not be any errors in the document.