"Maturity is not when we start speaking big things, it is when we start understanding small things"
Maturity doesn't come at a certain age, to make it clear first of all. A 30 year old adult may not be mature while a 18 year old teenager may be mature enough to realize his dreams.
Maturity is when you stop putting your Ego as a reaction to your Parent's/Elder's/Anyone's wise suggestions.
How many of us have pitched up our voice high with our teachers/parents just because they suggested something to us? (Let it be 'bout our friends circle or the amount of time we spend on internet.)
Maturity is when you realize that Privacy matters!
Maturity is when you stop Living in your Dreams and instead, start Living your dreams!
Maturity is when you give justice to your dreams! It's when you start working hard for your dreams instead of wasting your time here and there.
Maturity is when you stop surfing, clicking those blue links randomly without any purpose. Just like you're provided with a list of things to buy from the Market, make sure that you've set up a purpose to surf on Internet. If it's question, search for it, and just close once it's done! (You can do the surfing in your leisure time, if needed.)
Maturity is when you remember the promises you once made! Let them be to your parents, friends, or even to yourself. With that said, make sure you start working upon them and never stop once the content is achieved.
Maturity is when you learn to listen. Let it be from your friend who has just come from a busy day and wants to share something with you, just listen! Don't suggest, don't argue, don't react much...Just allow them to speak up to you.
Maturity is when you learn to HANG ON!
Maturity is when you start giving importance to Knowledge!
Maturity is when you learn to put your points in brief, understandable and positive.
Maturity is when you stop lying to yourself, your loved ones! (Not impossible but still, at least give it a try.)
Maturity is when you stop PROCRASTINATION!
Maturity is when you learn to say thanks and sorry to those who helped you in reaching the position where you are! (Thanks and Sorry should be used according to the situations :P Don't intermix them.)
Maturity is when you start thinking about the purpose of your life.
Maturity is when you start considering the situations of the ones at the other end.
And ...most importantly:
Maturity means when you realize :