Before you ask for a promotion, be sure that you're doing all the right things to help ensure that the answer will be positive.
1. Do a Great Job
How you perform in your current position is going to be important when you're considered for a promotion. Excellent performance reviews and your reputation as an above-average employee will carry a lot of weight when the company is making staffing decisions.
2. Be a Team Player.
Volunteer to help with new projects in the office. Offer to help your boss and co-workers whenever time permits. You'll be known as a team player and an individual that colleagues want to work with.
3. Don't Miss Work.
Be on time for work and don't take more time off than you are allocated. If you're known as a slouch and someone who misses more work than is appropriate, it will be held against you.
4. Network and Get Noticed
Attend company parties and gatherings. The more connected and engaged you are with your colleagues, the more they will know about you and the more you'll stand out when it comes time to consider you for promotion.
Managers are more likely to promote an employee they know well than a random applicant they don't know much about.