The Welcoming Prayer can be learned in several ways. One way is by attending a local Welcoming Prayer day or weekend retreat/workshop. There are also Welcoming Prayer immersion retreats. You can search our online calendar to see if there is a workshop or retreat near you.
You can also learn the method through an online course. Contemplative Outreach and Spirituality and Practice have developed an online, on-demand course that you can take anywhere, anytime you have internet access. You can find more information here.