Just sit comfortably, close your eyes (so you don't get distracted as easy) and focus on your breathing. Don't force your breath, just let it flow naturally. When you breathe in, you can feel your stomach expand a bit, and as this happens you make a mental note by saying 'rising.' Don't say it out loud, just note it. And when you breathe out, your stomach will fall and then you note the 'falling.' Some people have hard time noticing the rising and falling of the stomach, so you can place either of your palms on your abdomen so you can notice it more easily. I put a timer on my phone, 10-20 minutes, and meditate for what time.
That's about it. You can also note whatever feelings you have, whether its pain, frustration, boredom or whatever. The point of meditation is to be mindful, because when you are mindful it somehow changes how your brain works.
Also: meditation isn't supposed to be easy or fun, its actually very very hard because our minds wander all the time. Eventually you will notice that you aren't actually controlling your mind, but rather, it is controlling you, and when you realize this you start to let go, and start to become more happy.
"Researchers show that meditation can induce relaxation-related brain waves, such as alpha and theta waves."
