YOU SAID:
hello everyone happy to see you
INTO JAPANESE
こんにちは、皆さんに会えて嬉しいです
BACK INTO ENGLISH
hello nice to meet you all
INTO JAPANESE
こんにちは、皆さん初めまして
BACK INTO ENGLISH
hello everyone nice to meet you
INTO JAPANESE
皆さんこんにちは、初めまして
BACK INTO ENGLISH
Hello everyone, nice to meet you
INTO JAPANESE
みなさんこんにちは、初めまして
BACK INTO ENGLISH
Hello everyone, nice to meet you
You should move to Japan!