Use protein supplements wisely. Throwing back a protein shake every morning is not a guarantee that your body will build muscle mass. Although protein shakes are not inherently bad, they are also not a magical means of building muscle. If you decide to implement a protein supplement in your diet, make sure the ingredients are high-quality (i.e. not riddled with sugar and empty carbs).
Do you want to become a bodybuilder? Did an old clip of Arnold Schwarzenegger inspire you? Did a recent competition spark your interest? Bodybuilding is becoming an increasingly common sport for men and women, with competitions popping up in most major cities. To get started in bodybuilding, you need to find a gym, start weight training, and design your diet to match your routine.
Identify specific muscles you hope to build. As you're posing, it's a good opportunity to check out your symmetry, your good gains, and identify places that you need to isolate or work out more vigorously for next week's training sessions. What needs to be smoothed out? What needs to be bulked up? What exercises will you need to do to get the results you want?
You should also have everything you need for simple workouts. Especially if you plan to hit the gym nearly every day, it's a good idea to have some equipment for those rainy days when leaving the house isn't an option. And let's face it: Buying some basic workout items will make your jump into the fitness world more fun. This might sound trivial, but having clothes you like can influence your desire to train.