Even if no buyer is there to be found, The trade of 'yes-yes' words still goes round.

This couplet encourages us to always offer words of respect and humility, represented by 'Ji-Ji', even if it feels like there's no one to receive or appreciate them. It's a beautiful reminder to cultivate a habit of politeness and reverence in our interactions, not for external validation, but as an intrinsic part of our character. The act of giving respect, the 'trade' of courteous words, is valuable in itself. It suggests that our good manners and respectful demeanor should be consistent, irrespective of how others respond, making it a practice of inner integrity and grace.