Topics: Sociolinguistics, Sociolinguistic Differences, Speech Communities, Speech Acts, Speech Events, Dialects, Idiolects, Sociolects, Code Mixing, Code Switching, Register, Style, Pidgins, Pidginisation, Creoles, Creolization, slangs, clichés, Taboos, Profane Usage, Monolingualism, Bilingualism, Language Contact, Multilingualism, Diglossia, Polyglottism, Language Ideology, Sociolinguistic Variation, language determinants