You should reply "and the balance of the day to you."
"I am well, and you?"
i don't care. you shouldn't of slept with my wife. you git.
We should also reply how do you do as a responce.
If someone you loves says I love you, you reply as I love you too...! but if its someone else...you should let the person know about what you feel about him/her.. p
When someone says "thank you" to you, you should reply by saying : "You're welcome"
"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."
Reply what are you doing now or a simple "sup"