A male friend once told me that I looked really good in the pants I was wearing. They’re looser, he said, aren’t they? You should wear them more often, instead of those tight ones you wear.
Not sure if that’s a true puffy face moment, but it’s the first one I thought of.
The same male friend also once said, Isn’t that So-and-So’s dress? Yes, I replied. I’m surprised it fits you. Oh.
The truth is he was clueless about the implications of his comments, didn’t mean to offend me or imply anything about my weight, etc. But in this case, ignorance is not bliss - at least not for those around you.