talking to God should be the same as if you were talking to your best friend. You should tell him your thoughts, desires, hurts, and problems, as well as giving him your thanks and praise. Talking to God not only tells God that you have knowledge of him but that you also have faith in him. Talking to God also tells him that you have a desire for his presence in your life and that you need him and are dependent on him. It also shows God and that you want to be obedient to him. He wants to hear these things from you. He already knows what they are but he wants you to tell them to him. He wants you to make the effort to talk to him and not to take him for granted. If you really want to communicate and talk to God, if you want to become close to him, if you want to begin to grow strong spiritually, and if you want to begin a glorious and meaningful relationship with him, then do two things.
1) Talk to God daily, in a normal everyday type of conversation. Remember that God can read your mind and that he is constantly observing your inner most thoughts at all times, so he knows what is going on in your heart and your mind far better than you do. So your conversations with God do not have to be vocal and you can mentally talk to God anytime you want. God gave us little taste of his ability to search the hearts of men and read their minds back in Jeremiah 17:10 when he said, "I, the Lord, search the heart, I test the mind, Even to give to each man according to his ways, According to the results of his deeds."
So you can easily talk to God in your thoughts, and these conversations can be done anytime or anyplace. They can be done in school, at work, or at any other place, even if the rules of the world are against it.
2) The second thing you need to do in order to better communicate with Jesus is to read the Word of God each and every day. The Bible was the one thing that Jesus left for each one of us to read and study so that we would be able to find out about God. Only by reading the very word of God can we hope to draw near to him.