Perhaps at the end of such a conversation, you might say a prayer, asking Jehovah to give the learner the holy spirit he needs to complete his training.
وَرُبَّمَا يُمْكِنُكَ فِي نِهَايَةِ ٱلْمُحَادَثَةِ أَنْ تُقَدِّمَ صَلَاةً ،‏ سَائِلًا يَهْوَهَ إِعْطَاءَ ٱلتِّلْمِيذِ رُوحًا قُدُسًا لِيُسَاعِدَهُ عَلَى إِنْجَازِ تَعْيِينِهِ .‏