Formal:

• Good morning →00.00 until 12.00am
• Good afternoon → 12.00am until 06.00pm
• Good noon → 12.00am o’clock
• Good evening → 06.00pm until before time to go to bed
• Good night → when it is time to go to bed
• Good day → no time related
• How are you? → I am pretty good thanks.
• How is everything? → I am just fine, thank you.
• How are things? → Everything is all right, thank you.
• How is your life? → I am very well.

 The first time you meet someone

• How do you do? (first meeting) à How do you do?
• It’s nice meeting/ to meet you. → It’s nice meeting/ to meet you too.
• It’s a pleasure meeting/  to meet you. → It’s a pleasure meeting/  to meet you too.

 The second time you meet someone

• It’s nice seeing / to see you again. à It’s nice seeing/ to see you too.
• It’s a pleasure meeting/ to meet you again. à It’s a pleasure meeting/ to meet you too.

Informal:

• Hello! à Hello!
• Hi! à Hi!
• What’s up? à Nothing much.  You?
• What’s going on? à Not much. You?
• How are you doing? à I’m doing good. / Pretty good. / Fine thanks. You?
• How’s life? à Not too bad.

Common ways of saying Goodbye 

Formal:

• Have a nice day/ week/ weekend.
• I look forward to our next meeting.
• Until we meet again/ next week.
• Take care.
• It was nice seeing/ to see you again.
• Good night.

Informal:

• Bye!
• Bye bye!
• See you later/ See you soon/ Talk to you later.
• I’ve got to get going/ I must be going.
• Take it easy.
• I’m off.