One of the most enjoyable aspects of owning a cell phone is that it can be customized to reflect your personality in so many ways.  Indeed, just choosing a certain phone model expresses something about you. For example, choosing a basic black phone can indicate you are practical and prefer utility over aesthetics. Choosing a smart phone shows you are tech savvy, and a music phone expresses the fact that music plays a big part in your life.
Some phones have lights that flash in time to your ringtone, so your choice of ringtones is even more expressive with such a phone because of the way the ringtones cause the lights to flash. Your choice of ringtones is also a super-fun way to let your personality show, and there are enough ringtones out there that you are sure to be able to match your own unique style.
You can also get special wallpapers (pictures and graphics) to go on your phone’s “desktop” or main screen, and if your phone has two screens, you can customize them both to match your mood, your occupation, or your hobby.  You can also use pictures of a child, friend, or vacation spot—the possibilities are endless.  Wallpapers are available from your provider’s website, other websites, you can import pictures from your home computer to your phone, or you can use your favorite picture from your own cell phone photo gallery.
Just picking out a case or belt clip can add personality to your cell phone.  Depending on your phone model, you can also choose different skins of various colors that protect your phone as well as allowing you to change the color to match your outfit or your mood.  If you get a Bluetooth device for your phone, that choice can also express a facet of your personality because there are so many types available—some are quite elegant, others emphasize practicality.
So when you get a cell phone, customize it and let your personality shine through!