"Shall" and "will" are both used to express the future tense, but they have slightly different meanings. "Shall" is used to indicate a strong intent or a promise, while "will" is used to indicate a simple future action. For example, "I shall never forget your kindness" indicates a strong intent or promise, while "I will call you tomorrow" indicates a simple future action. In modern English, "shall" is used less frequently than "will," and it's often used in more formal or legal contexts.

"Uniquely" means that something is one-of-a-kind or distinct from everything else. For example, "Snapchat's Spotlight feature is uniquely designed to help users discover new and entertaining content on the app."

Native speakers would typically say something like "I'm good, thanks. How about you?" or "Not bad, thanks. How are you?" or "I'm doing well, thanks

Both "may" and "might" are used to express possibility or permission, but "may" is more formal and "might" is more tentative. "May" is used when there is a higher degree of certainty, while "might" is used when there is a lower degree of certainty or when the possibility is more hypothetical. For example, "I may go to the party tonight" implies that there is a good chance that I will go, while "I might go to the party tonight" implies that there is a possibility that I will go, but it's not certain.