Supplication is a bit of a fancy word meaning 'to ask'. God wants us to ask him for help. He wants us to turn to him in our time of need. Sometimes we're afraid to ask because we think that God doesn't listen to us. Equally, we give up asking because we think God's not in the business of answering our prayers. But as I always told my Mum when I asked for another £10 to go to the cinema, "if you don't ask, you don't get."
So why not finish this time of prayer by thinking of the needs you have. Think of some of your friend's needs. Or maybe your family, what do they need today? Ask God to supply answers to those needs.