Make sure your shaver is charged and ready to go.
Try to shave before you wash your face, since the skin tends to be slightly swollen after washing.
After a few days without shaving, for example post weekend, you should trim your stubble beard before you shave.
Now, turn the Braun shaver on. Stretch the skin with your free hand before you shave extra sensitive areas or ones that need a closer shave. This ensures a smooth glide across the skin.
Hold the shaver at a right angle (90°) to your skin and shave against the direction of beard growth. Also keep in mind that avoiding going over the same areas over and over again increases your chances not to have skin irritation.
Keep the pressure even to achieve the best possible shave. No need to push as hard as you do with a manual razor.
Clean your shaver regularly. Depending on the model, you may be able to use the Braun cleaning center that automatically cleans and lubricates the shaver at the push of a button.