Thank you
When someone wishes you a Happy Birthday, you should reply with "Thanks a lot".
When someone wishes you a Happy Birthday, you should reply with "Thanks a lot".
You should say "thank you" when someone wishes you Happy Birthday.
I would ask them another question, why did they think that?
Thank you very much! (if it's your birthday) I think you have me confused with someone else, it's NOT my birthday. (if it's NOT your birthday)
When someone gives you a birthday wish, it is fine to give a simple thank you as a reply.
Thanks
Thank you.
Thank you? Danke.
Thank you. I appreciate the good wishes.
The reply should be "I'm fine thank you, and yourself"
pleasure