I think it's ok to share what you think are your spiritual gifts just as long as you don't give yourself a title, and get so wraped up in "this is my spiritual gift" and show it off, God's looking for people who are humble about what God has given them, not people who like to show off what God has given them. but back on subject, just look at what you do in the church, what you like to do, what you're good at, what you're most progresive at, but most importantly ask God, he'll tell you