Ask the Slavs if the Greek Orthodox proselytize or not. The answer is that the Orthodox do proselytize, which is after all a Greek word. They just don't do it actively among other Christians
IT'S OK TO PROSELYTIZE, BUT THERE ARE TIMES WHEN IT'S KINDER TO REFRAIN.
The Orthodox are passive proselytizers, in other words you convert through good works and personal example or something like that. See the Greek conversion of the Pagan Slavs as an example.