When someone wishes you a "Happy Teacher's Day," you can reply with a gracious and appreciative response. Here are a few examples of how you can reply:
"Thank you so much! I truly appreciate your kind wishes on Teacher's Day."
"Thank you for the thoughtful Teacher's Day greeting! It means a lot to me."
"I'm grateful for your warm wishes on Teacher's Day. It's an honor to be a teacher."
"Thank you! Your kind words made my Teacher's Day even more special."
"I'm touched by your Teacher's Day wishes. Thank you for remembering and acknowledging teachers."
"Thanks a lot! It's a pleasure to be a teacher, and your wishes made my day."
"Your Teacher's Day greetings brought a smile to my face. Thank you for making me feel appreciated."
Remember to keep your response sincere and genuine, reflecting your gratitude for their kind gesture on Teacher's Day.