There are various nuances of speech that usually give away fake moderates (although those who pride themselves on the mastery of "nuance" are precisely those who don't notice these).
But the most straightforward way to tell real from fake moderate Muslims is that the real moderates actively finger the fakes for us and/or oppose extremist/radical Muslims with a vehemence and energy that is totally lacking from the proforma performances of the fake moderates.
When the bomb explodes?
Cordially,