[header] How to dress well as a guy [title] Dress according to the activities in your life, and the image you want to project. [step] Dressing according to trends can be fun, but if it's not appropriate for what you're actually doing at the moment, it can make you look out of place. [substeps] Be true to the person that you are and the things that you actually do. 
If you don't actually play sports, avoid looking like you just walked off a basketball court. When dressing for work or for school, respect the culture of that environment.