You answer with xoxo back. xoxo are kisses i think .
"I am well, and you?"
You can reply to "How do you do?" by saying "I'm well, thank you. How about you?" This is a polite way to acknowledge the greeting and show interest in the other person.
pleasure
"Merçi!"
When some says "wassup" you would reply as if someone asked you " what's up."
and the rest of the day to you
A smile and a heartfelt "Thank you".
You could say, "I'll try."
If someone says sup in chat then the reply is usually nuttin. Sup is short for whats up
The most appropriate reply would be "Thank you."
go to the video where someone has commented, and under their comment there is a button that says "reply" :)
You should reply "and the balance of the day to you."