Good morning! How are you today?
Your sentence "Good morning" is already correct and polite for a morning greeting.
Tips to improve or vary it:
1. More natural/casual: "Morning!" (common among friends)
2. Adding politeness: "Good morning to you too!" (if someone greeted you first)
3. More enthusiastic: "Top of the morning to you!" (a bit old-fashioned but friendly)
4. With a smile (tone matters!) – Even simple "Good morning" sounds warm if said with a smile.
Extra tip: In spoken English, clarity matters more than complexity. Your original is perfect for most situations (work, formal, or polite casual).
Would you like help with a longer greeting or response? (e.g., adding "How are you today?")
(Word count: ~100)