Read it through once

"I'm glad you can't flirt; it's really refreshing to see a sensible, straightforward girl, who can be jolly and kind without making a fool of herself. Between ourselves, Jo, some of the girls I know really do go on at such a rate I'm ashamed of them. They don't mean any harm, I'm sure; but if they knew how we fellows talked about them afterward, they'd mend their ways, I fancy."