Informal speech is a casual way of communicating that often occurs in everyday conversations. It includes slang, colloquialisms, and relaxed grammar, making it feel more personal and friendly. People use informal speech when talking to friends, family, or in relaxed settings, allowing for a more natural flow of ideas and emotions. This type of speech can vary greatly depending on the region or culture, as different areas have their own unique expressions and phrases. For example, what might be considered informal in American English could differ from informal speech in British English. Overall, informal speech helps create a sense of connection and familiarity among speakers.