This is a GREAT question!
Prayer is simply you having a conversation with the Divine, God, Goddess, etc. You can chant if you want or you can just talk. While you're praying, you can ask for things. I often ask the God and Goddess for prosperity, confidence, guidance, balance, love, etc.
Let me give you an example of a prayer I sometimes use:
"Good morning, my Lord and Lady! Thank you for watching over me and my boys while we slept last night, and thank you for the beautiful morning. Please watch over and guide us today. Open our ears so that we may hear. Open our eyes so that we may see. Open our hearts so that we may be compassionate and kind. Thank you and blessed be."
Praying helps to create a relationship with the God and Goddess.
Don't be afraid to pray!