"Focused breathing is another very popular, yet tremendously simple, meditation.
As in general meditation, find a quiet time and place where you won't be disturbed, close your eyes, and clear you mind of any thoughts. From there, focus on your breathing. Focus on the in-breath, and the out-breath. This is also commonly known as conscious breathing, because as opposed to our normal breathing which we do not focus on or attempt to control, "focused breathing" is consciously monitored and controlled. You simply "watch" yourself breath, so to speak, and attempt to bring your breaths to a slow, rhythmic pace (whatever pace feels comfortable to you).
By focusing on your breath, you draw your attention to that, and eliminate random thoughts, which creates a feeling of inner peace. To help focus on their breath, people will often draw their attention to the air entering their nostrils, and the air leaving their mouth.
You may also wish to draw your attention to the rising and falling of your chest. Use whatever method you feel comfortable with. As for controlling the pace of your breath, some people count a certain number of seconds between each breath and attempt to maintain this slow, rhythmic, controlled pace. Others prefer not to count. Other use different techniques still. We suggest you use whatever feels comfortable to you."