First meditate until you are in the correct state (connected to the area around you, and your physical vision seems split between the veil). Once you are to this point, practice lifting your astral arms up. First lift your physical arms in front of you. Pay close attention to how this feels, the movement, and the thought that goes into lifting them. Oncw you have done this and have the visual and feelings embedded in your mind, do this again, but with your astral arms. Imagine your arms leaving your physical body. You may do this with your eyes open or closed. I prefer closed. When the astral body separates from the physical, you will feel sorts of a tearing or peeling on the very top layer of skin. Practice this a few times then get back to me.