24/10/19 ACCEPTING AND REFUSING USING THANKS
We often use Thank you / Thanks like Yes, please, to accept offers.
  • Would you like some candy bars?
  • Thank you.
  • How many?
To make it clear that one wishes to refuse something, it is normal to say No, thank you / No, thanks. If you just say thanks, the other person will interpret you’re accepting.
  • Another piece of cake?
  • No, thanks. I’ve eaten too much already.
Note that Yes, thanks is not used to accept offers, but to confirm that things are all right.
  • Do you have enough potatoes?
  • Yes, thanks. Everything is delicious.