A sense of humor is essential in our daily journey and particularly in our faith walk. There are people we meet who actually need us to hear the "human" in their conversation. When we take them too seriously, they hold their ground and a conversation shifts to becoming a confrontation. I'm suggesting that the "human" in their voice is their humor.
As believers we sometimes take ourselves too seriously and we need to see the joy in the engagement with the pre-Christian. I daresay, this approach is far more welcoming. The Scriptures have something to say about laughing.
1 Peter 1:8 (MSG)
8 You never saw him, yet you love him. You still don't see him, yet you trust him—with laughter and singing.