Discerning call assumes community. We need to be in dialogue with other Christians. Just as we need to be in community with others to discern and use our Spiritual gifts to answer God's call. No one has all the Spiritual Gifts except Jesus, hence to be his body we must act together. Each different member has different gifts for the work of the Kingdom that Christ wants to do in the world and is vital to the body.
Gifts are more than the sum of our talents and abilities.
They are Emmanuel, God with us, and through our experience in using them and being the vehicle of bringing God's power to the world we learn about God. We have Epiphanies. The Spiritual Gifts are many and varied there is teaching, wisdom, helps, administration, healing, music, pastoring, wisdom, knowledge, tongues and interpretation, prophecy, prayer, giving and many more. Roman's chapter 12, Ephesians chapter 4. Most people writing on the Spiritual Gifts concur that there are more than those listed in the New Testament literature but these are a fine place to start.