The majority of people want to make more money, but may not know exactly how to ask their managers for it. First, you will need to look at your current situation and understand your worth to the company. Are you contributing significantly more today than you were yesterday? Have your responsibilities increased? Are you doing more? You could be traveling more, handling more clients, working on more projects, contributing more time, or consistently exceeding expectations. You may be a high performer with great potential to grow. Whatever the reason is, you are looking to be paid more money.
Before you approach your manager, make sure you have the facts straight. Make sure your manager will agree with your point of view. If you believe you are a high performer, but your manager does not, then you may not see the increased salary you desire. Before you can ask for a raise, you will need to make sure your manager sees you as a high performer first. Understand what you are missing and close the gap. If your manager does see you as a high performer and you are increasingly contributing to the team, then you should seek out a conversation. It would be best not to catch your manager off guard or demand a raise on your first conversation.
In speaking with your manager, explain your request with softness and not with hard cold demands. Tell him/her that you feel you should receive a raise for your above and beyond contributions. You may go to glassdoor.com or similar websites to search how much similar roles in your area with similar experience are getting paid. If it is higher, then you should also show your manager. This makes me think of price matching at Wal-Mart or Best Buy. You may also want to include some examples of how you are going above and beyond. Lastly, you may want to have a number in mind on where you want to be. It would be best not to be unreasonable.
With this in mind, you may be ready to speak with your manager about a raise. You may or may not get the raise. The important thing is you are asking, so if you do not get it at first, your manager will keep you in mind for later on. As they say the squeaky wheel gets the grease. You always want the grease, even if you do not need it at the time. Eventually you will need it and you want to make sure you are ready ahead of time. Try it out for yourself and let us know what happens.