31. For your exercise this week, visualize your friend, see him exactly as you last saw him, see the room, the furniture, recall the conversation, now see his face, see it distinctly, now talk to him about some subject of mutual interest; see his expression change, watch him smile. Can you do this? All right, you can; then arouse his interest, tell him a story of adventure, see his eyes light up with the spirit of fun or excitement. Can you do all of this? If so, your imagination is good, you are making excellent progress.