You may do this by restating the thought - conveying words or by asking questions that will help the householder to recognize them.
وَهذَا ٱلْأَمْرُ مُهِمٌّ بِشَكْلٍ خَاصٍّ عِنْدَ ٱلشَّهَادَةِ لِشَخْصٍ يُؤْمِنُ بِٱللهِ لكِنَّهُ غَيْرُ مُطَّلِعٍ عَلَى مَا يُعَلِّمُهُ ٱلْكِتَابُ ٱلْمُقَدَّسُ .‏ —‏ مز ١٩ :‏ ​ ٧ -‏ ١٠‏ .‏