Prayer time is business time. It is the greatest privilege any man can have; to commune and talk with the greatest and the only God. It is therefore imperative that prayer time be taken seriously and not casually and not seen as an ordinary religious exercise.
The attitude we have during prayer determines the result we get from such prayers, as God cannot be mocked (Galatians 6:7) we have to be focused and have our minds on God. We should not allow anything to distract us during our prayer times (e.g. our phones, friends etc). We should make sure our hearts are connected towards heaven as Clarke rightly said, "prayer requires more of the heart than of the tongue."
Lets check our prayer lives (personal and corporate) and examine ourselves. Let us make sure that every time we pray we are doing what we propose to do and get the best out of our prayer time. Prayer is for profiting, it is the key we have to heaven, it is our source of power, it is our weapon against Satan etc let us maximize our praying time.
He prays well who is so absorbed with God that he does not know he is praying.
-St. Francis of de Sales