Quote Originally Posted by chemist View Post
Here it is definitely a bet, I wouldn't be giving away free cards.

There are other situations though where I have regretted not taking a free card as I've been re-raised and have to pay more for the next card or consider giving up the hand.
You're only giving the opponent a free card if you're ahead, which isn't clear here. It's also quite possible that by checking, you're giving yourself one.