500 Hello!
501 Hi!
502 How are you?
503 I’m fine.
504 Thank you.
505 Happy birthday.
506 You’re welcome.
507 Let’s sing.
508 Nice to meet you.
509 Nice to meet you, too.
510 Cool!
511 Look!
512 I’m sorry.
513 That’s OK.
514 Good job.
515 Try again.