English Greeting Expressions (Formal and Informal)There are many ways of greeting people, both formal and informal. General greetings (Formal) 1. Hello!2. How are you?3. How are you doing?4. How is everything?5. Hows everything going?6. How have you been keeping?7. I trust that everything is well.General greetings (Informal)8. Hi.9. Whats up?10. Good to see you.11. How are things (with you)?12. Hows it going?13. Hows life been treating you?Greeting a person you havent seen for a long time (Formal)14. It has been a long time.15. Its been too long.16. What have you been up to all these years?17. Its always a pleasure to see you.18. How long has it been?19. Im so happy to see you again.Greeting a person you havent seen for a long time (Informal) How come I never see you? Its been such a long time. Long time no see. Where have you been hiding? Its been ages since we last met.