The simple way to pray when you do not feel like praying is to open your mouth and say whatever it is that is on your mind, in whatever language, and in whichever position you deem fit, out loud to God in Jesus’s name. Trust me, whatever you say is what a prayer is called in Greek and in English too. As sacred as a prayer may seem, it is also the way we commune with God in our relationship with Him, so why complicate it? Talk away, He is listening.