When I lived in Saudi, we had no problem quietly staying in touch with our Christianities.
We certainly did not parade a photo of Mother Theresa downtown, anymore than I'd parade a photo of General Grant through Georgia.
Islam is not monolithic, and many Islam scholars love to discourse on Abraham, and of the sanctity of the virgin birth of Jesus, to Mary and Joseph.
I don't recruit. Any Immam or any other Muslim asks questions, I politely answer. There is more than one "Muslim" in the mideast that wishes that the other guy's version of Islam would disappear, but every religion has factions that don't agree.
Ah. Astonished/Sawgrass/Passin' Pilgrim/Kudzu/Glassheart3 and so forth and so on for half a page - is that you, back again??