First of all, you need to decide what kind of impression you want to put on others. Your intention plays a vital role in this regard as what you want others to think about you. Prepare accordingly and leave a desired impression on them while wearing appropriate accessories.
Then you need to be an expert at choosing colours as they reflect your personality. If you are class conscious and want to leave that impression on others, try accessories in black. However, green and blue colours are most appropriate if you want to give a smart and casual impression.
The style and design of accessories is very important and you need to know what is in vogue. Wearing rugged leather accessories give you a country touch whereas using the belt with many metal ornaments leave an impression of modern personality.
Make sure you select only those accessories that suit your dressing as well. Avoid using such accessories that become too prominent rather than your dressing. So, you should select such accessories that enhance the elegance of your dress and your personality at large.