[gmku]

Some simple attire tips:

Shoulder seams should run at the shoulders, not hang past them.

If you roll up long shirt sleeves, roll them all the way past the elbow. Otherwise leave them buttoned.

Your shoe colors don't have to match your pants, but they should be as dark or darker* (for example, dark chocolate-suede shoes would work with black pants). *I don't always follow this rule myself, though.

Don't wear shoes of any kind with shorts unless they're trainers and you're working out, gardening, or mowing the lawn--for all other occasions, if you're going to wear shorts, sandals are the only choice.