Stay relaxed and moveable. A wedding is a very formal occasion therefore you shoule wear groom’s wedding suit that you can move all the time in the wedding easily and in the meanwhile appear gorgeous as well. Looking crisp and cool is the new trend nowadays.

Wear attractive footwear with your groom’s wedding suit. Black, leather, lace up, and very well polished shoes would be the best. Preferably, select a pair of leather shoes in place of rubber soles. 

Tie suitably. Tie is a matter of individual option. When it's your cousins or friends who select the color and not you, then do add your own option. It's more and more stylish for grooms to wear cravats rather than ties.  

Make sure the groom’s wedding suit isn’t oversize. You should try on your groom’s wedding suit at least one week before the wedding in order to check if it is suitable. Your groom’s wedding suit should fit well and offer you a variety of motion both buttoned and unbuttoned because you have to move and touch with many people and attract all attraction.

Dress appropriately according to your body shape. Don't chase after the fashion trend without consideration because you know your body shape better. If you're a little short, abandon single-layer jackets, suits as double-layered groom’s wedding suits will give you a fatter appearance and make you look like a shorter man. If you're bigger around the middle, you can put on a lower-buttoning wedding suit instead of a groom’s wedding suit with a higher placket because it will give you the long silhouette.