In a few weeks our school is having what they call a semi formal. I so far plan to wear navy 3pc suit with faint check ivory spread collar double cuff shirt. Now, I need options for tie pocket square and shoes. Her dress is a blueish green. The shoes I think I will wear are AE Byrons in Chilli. The recent thread on brown shoes has given me some apprehension to wearing these ,though. But, what I really want to know is what to do with the tie.