What is charlotte's opinion on how jane should handle her crush on Bingley

This occurs very early in the book (one of the first few chapters, I believe), and it happens when Elizabeth is talking to Charlotte about how Jane seems to be very in love with Mr. Bingley, but she is hiding it very well. To this, Charlotte says that she should not conceal it too well, or Mr. Bingley may lose interest in pursuing her (thinking that she does not feel the way he does about her).