Practice Non-Judgment.
Being mindful means practicing non-judgment. There is no need to agree or disagree with what is being said or evaluate the statements being made.
Remember that offering your active presence is more important than having their deeper question answered. A skilful active listener is able to simply receive the message without the need to judge or respond with their own bias.
*Taken from https://positivepsychology.com/active-listening/ click link to read more.