The first was the rapid modification in Boyle’s appearance. He quickly changed from an Afghan or Pashtun appearance to one with a shaved moustache, but with a clipped beard, often a trademark of a political Islamist’s Salafi or Wahhabi bent of mind.
(To be fair, orthodox but non-political clerics of Islam can also sport the same facial hair.)
Next it was what seemed to me to be Boyle’s change in accent, depending on his audience. When he first spoke in Pakistan, it was a mix of Arabic-Pakistani English.
However, when speaking to the western media, Boyle shifted to a more American pronunciation and in Canada, to a familiar Canadian nuance