In Singapore all JW literatures are banned. There are a few JWs though, who secretly congregate in a home and conduct very low profile meetings , prepared to pretend as if that was just a get together, in case the authorities would conduct an inspection anytime.
In that meeting after the rutuals, they then decide where
the next meeting would be, in a different place.
If a JW wants to witness to an unknown person, they would build a very trusted relationship first before they preach, fearing they might report to the authorities. So much of Protection from Jehovah and his angels to do the most important work in this universe.