Gatsby and Nick are out for lunch. Gatsby encourages Nick's involvement with Jordan. It helps his plan along to be with Daisy. In an effort to solidify Nick's attraction, he tries to cast Jordan in a positive light. He tells Nick that, "Miss Baker's a great sportswoman, you know, and she's never do anything that wasn't all right"(ch. 4) in an effort to build up her image for Nick.
This is an ironic remark because Jordan herself admits to Nick her occasional lack of honesty. Therefore, Nick, is already aware that Jordan does not always stick to the truth and he quickly disregards Gatsby's remark.
Gatsby encourages Nick's relationship with Jordan. Jordan has told Nick about her inability to be honest. Gatsby has his agenda for wanting to help Nick be with her. He thinks that it will help him get back with Daisy.
Jay Gatsby tells Nick he admires Jordan's honesty. We all know that she isn't honest, even Nick knows that she isn't honest. Gatsby thinks that she is and he admires her for that. It is ironic that he would admire her honesty. It goes to show that Gatsby doesn't see people for who they really are. He is caught up in his campaign to get Daisy back, that he is overlooking the reality of who these people are. He doesn't even know who he is. He is not aware of his own dishonesty with his own background and situation.
What is sad is that Gatsby is setting himself up for the tragedy that is coming his way. If he could see who people really are and what they are after, then maybe things would have turned out differently for him. Maybe his life would have been spared. If he had only been able to be honest with himself things could have been so different.