I sometimes believe we go out with our Christian hatchet in hand and take sinners scalps for Christ. Putting those sinners scalps on our Christian belt. We do it to do enough works to gain favor from Christ and we must realize we can never do enough works to earn heaven. Unless we become as little children we cannot enter into the kingdom of heaven. We need to spend some time learning to like/love our fellow man. If we're saying we don't really like you very much, by the way we act, but by the way here's some Jesus, thats probably not going to work out very well.
I think loving people around us rubs off on people that don't know Christ. Lets enter heaven with them hand in hand, instead of trying to enter with their scalps on our belts.