How Christians Pray

you don't need to jump up and down before God will be able to answer your prayer. You don't need to speak in a magnificent microphone before you can be heard by God. You don't need to to meet a pastor before your prayer can be answered by God.  You don't need to shout and shout before your prayer can be answered.
Take this illustration:
Assuming you are a father and you have a son, he is seriously in need of new clothes and shoes, so he comes to you and ask you to buy clothes and shoes for him. By coming to you, will it be appropriate that the child will shout to you " DADDY, BUY ME CLOTHES AND SHOES, DADDY BUY ME CLOTHES AND SHOES", even if you know that it is appropriate for you to buy that, you wont buy it because that is not how to ask. Won't you? That's just the same thing to God, the Bible says in Matthew 6:2 , "that the have already have their reward", which simply means he wont answer them. 
Another thing is that repetition is not for God, you don't need to say things allover again everytime you are praying. How will you feel according to the illustation above if your child should continue to repeat that saying everysecond that Daddy I say buy me a cloth, Daddy I say buy me a cloth, buy me a cloth, buy me a cloth, , wont you send that child away? That's just it. God doesn't want repetition in the book of Matthew 6:7, Do not say the same things over and over again, "