Well, you can make yourself look taller. Wear shoes with bigger treads or construction boots. Stuff your regular shoes with a bunch of Dr Scholls. Wear vertical-striped clothing.
One of the biggest factors stopping you from growing is gravity. If you just hang from a bar for a few minutes everyday you might end up an inch or two taller then you were supposed to be. This is assuming you are still growing.
Most of the things have been said in here. Simply drink milk, exercise daily, and probably eat healthy things such as vegetables, fruits, protein, etc.
I was 5'4" or so in 8th grade. I started doing many of the things mentioned above and I'm now 5'11" or 6'. In 9th grade I was about 5'8" or 5'9".
Well, I think I'm done growing now. I don't see myself getting any taller, but if you do those things mentioned then you should be able to get taller.