So many Christians wait for whatever it is they're waiting for before they feel they can be a representative of Jesus. They're always looking for that "someday" when they will finally be able to be the Christian that reaches out to others in Jesus' Name.
Most of the time those people never find that day. When they come to the end of their days, they wallow in regret, knowing there was so much they could've done if only they had made a start.
Don't be one of those "someday" people! Use whatever you have in your hand right now to be that cup of cold water or attentive ear or benefactor to the needy and hungry. Don't wait until all you have in your hand is regret.