Staff Member on LOA

Be simple and direct in your secret prayer. The grace of simplicity is not to be despised in public prayer; but when we call on God in secret, any formality or elaborateness in our petitions is an offense.
Pray audibly. You need not lift your voice to be heard in the street, but it is vastly better to pray not merely in your thoughts but also with words. The utterance of our wants helps to define them.
Be honest in your secret prayer. Do not express any want that you do not feel. Do not confess any fault that you do not mean to forsake. Do not keep anything back. Remember that it is He that searcheth the heart to whom you are speaking.
Pray earnestly. The words need not be loud, but the desire should be intense. "The fervent, energetice prayer of a righteous man availeth much." " No listless, drowsy petitioning will serve.
Do not mock God in your prayers. Do not beg him to come to you. You know that he is never far from any soul that seeks him. That prayer is answered before you utter it. Do not ask God to do for you that which he has expressly bidden you to do.
Pray always with special reference to the needs of the day and the hour the warfare to be waged, the temptations to be resisted, the work to be done, the sorrow to be borne; put your life into your prayer; and let it be the most real and the most immediate business of your life.

Walter Rauschenbusch