I have a combination of silent blocks and repetitive sounds. I definitely can tell a difference if I am around friends or strangers. I stutter both times, but it is worse around strangers. I work as a cashier so I have to speak to strangers constantly. For me, cadence is a big issue. If I am having trouble I will stop and start over. With each syllable I will consciously tap a finger to keep a rhythm. This can usually get me through most situations.