1
Decide how famous you want to be. Fame comes at many different levels. For instance, you could be famous in your school or workplace. You could be famous in your hometown or your state. Alternatively, you could go for ultimate fame and attempt to be famous around the world. Each of these has its own unique pros and cons, so it's up to you to decide how much fame you want.

2
Create a unique solution to a problem. Think about the problems in your life and in the world around you. If you can come up with a unique solution or a unique invention, you may become famous for it.[1]
For example, Marie Curie became famous as a scientist and inventor of the X-ray.
Think about problems in your life. Maybe you're always late, or you hate having to hunt around for your shoes everyday. What solutions could you come up with to help yourself and others with these problems?

3
Stand out from other people. Sometimes, you'll get noticed for just being yourself, if you have a unique way of doing things or a unique way of looking at the world. The key is to go your own way and be just who you are. You shouldn't change how you do things just because you do them in a unique or odd way.
Break away from stereotypes. If you love to skateboard, find your own unique tricks. Instead of going for a typical "skater" look, find your own flair.

4
Audition for a reality show. Another way people become famous is by going on reality shows. You don't necessarily need a talent to get on a reality show, though in some cases, you'll need one, such as with singing shows. Look on the shows' websites to find out where and when you can audition.
Generally, it helps to be enthusiastic when you audition, particularly about the show.
Keep in mind, on reality competition shows, the judges may be tough or mean. Don't take it too personally, though. It's a part of the show

5
Be generous in a unique way. While this may seem counter-intuitive, some people become famous by doing something for other people in a really unusual way. It could be making a large donation, but you could also just raise money in some way that's out of the ordinary.
For instance, one man, Si Burgher had famously long eyebrows, nearly 3 inches (7.6 cm)! When friends suggested he let people shave them off to raise money for charity, he agreed and became famous in his hometown of Bloomfield, Indiana.[2]
For example, you could make it your goal to bake and sell a million brownies to raise money for a cause.

6
Post a silly video. In a social media-driven world, you can win 5 minutes of fame by posting a goofy video that takes the internet by storm. It doesn't have to be anything terribly difficult. It just has to be engaging and entertaining. It can involve something as simple as your cat doing something funny.[4]
You might post a video of you playing a funny song on your instrument, or doing something funny in a public place. Get creative, and make sure you're having fun! If you're enjoying yourself, your audience is more likely to like the video!