The difference between saying "Hi" and "Hello" is primarily one of formality and regional usage. Both are commonly used as greetings to acknowledge someone's presence or to start a conversation, but there are some subtle distinctions between the two.
Formality: "Hello" is generally considered a more formal greeting compared to "Hi." "Hello" is commonly used in professional settings, when meeting someone for the first time, or in more formal social situations. On the other hand, "Hi" is considered less formal and is often used in casual and informal contexts, among friends, family, or acquaintances.
Regional Differences: The choice between "Hi" and "Hello" can also be influenced by regional preferences. For example, in some English-speaking countries like the United States, "Hi" is more commonly used, even in formal situations. In other regions, such as the United Kingdom, "Hello" might be used more frequently, particularly in formal settings.
As for whether one is more proper than the other, it ultimately depends on the context and cultural norms. If you're unsure, "Hello" is generally a safer option in more formal situations, whereas "Hi" is perfectly acceptable in casual settings.
How native speakers feel about this issue can vary depending on their cultural background, personal preferences, and the context in which they are communicating. Some may not give much thought to the distinction and use both interchangeably. Others might prefer to use "Hello" in more formal scenarios as a matter of politeness or convention. Generally, in everyday conversations, native speakers are not likely to be overly concerned about which one you choose, as long as your greeting is friendly and appropriate for the situation.