How can one begin teaching Islam to a Buddhist colleague, considering that he does not speak Arabic, and is it permissible for a woman to recite the Qur’an in front of a non-mahram man?

When inviting to Allah, the regulations and boundaries for interaction between men and women must be observed. The most important of these are: no unlawful seclusion (khalwa), no softness in speech, and no displaying of unlawful adornment. It is preferable for a male mahram or a Muslim man to invite a man to Islam to avoid potential harms. Otherwise, translated religious tapes, books, and the internet can be used to invite him.