Such questions can lead to a relaxed conversation. When it is appropriate to share a Scriptural thought, you will want to do so tactfully, not attacking what the person believes.
فِي بَعْضِ ٱلْأَحْيَانِ ،‏ لَا تَكُونُ لَدَيْكَ أَدْنَى فِكْرَةٍ عَنْ مُعْتَقَدَاتِ صَاحِبِ ٱلْبَيْتِ ٱلدِّينِيَّةِ .‏