Advancing in rank
Once you complete all the requirements to advance to the next rank, you will need to schedule a Scoutmaster conference and a Board of Review. The Scoutmaster can be busy so it's important to plan ahead and not wait until the last minute to ask for a Scoutmaster conference.
Usually the Scoutmaster conference will be during a troop meeting. You will sit down with the Scoutmaster and talk about what you've accomplished while working on your requirements. Based on this conference the Scoutmaster will decide whether or not to recommend you for a Board of Review to advance to the next rank.
Board of Review
The Board of Review consists of at least three Troop Committee members who will ask you about your accomplishments, what they mean and what you've learned from them. They will also check to make sure you are wearing your complete uniform (including your green socks!) and will not pass you if you are missing any part of your uniform. So it's important that it's complete, clean and you make the best impression you can. Sit straight, look at people when you talk to them, and answer their questions with complete sentences.
Receiving the patch
After your Board of Review, the Committee members will decide whether you advance to the next rank or not. Assuming you do, you will receive the patch for your new rank at the next troop meeting. Congratulations!