friend of sinners

Reading "Life Together" from Dietrich Bonhoeffer I found this quote reminding me of our responsibility to bring salvation to the world, instead of hiding behind our own walls or settling down in Christian fellowship:

"Visible fellowship with Christian brothers is a privilege. A Christian belongs in the thick of foes - that's his work, his commission."

Since it seems that God has gifted me in evangelism one of my leaders, Ian, gave me this advice: "To keep your vision alive you have to feed your gifting."

How can I do this?

"Hang out with sinners!"