Well guys, I love being formal but I feel casual for my outfit. One of them, I'll show you from photos that I uploaded. I am still learning to show it and hope that will be useful beside a story about my architect (soon to be) life.
The key are you should find you best one that you are comfort doing activities with it. Colors? Match colors that you like and show you much, with the occasion that you'll gonna do.
see! here they are my outfit formula:
formal black shirt
formal black shoes from H&M