Get an even tan. If you have pale skin, it's harder to see your muscles, simply put. Bronzing helps to create a bigger contrast, creating shadows where you muscles are popping. It's just easier and more aesthetic to see your muscles if your skin is a little darker. For that reason, you need to safely tan yourself on a regular basis to make sure your muscles are looking their best.
When lifting it is essential to focus your mind completely on the muscle group you are attempting to work on. This makes sure that you are actually using the target muscle to lift the weight rather than accessory muscles or even momentum. This skill will develop with time, and as you progress in making that mind to muscle connection, your workouts will become much more productive and efficient.