I stutter the most around my dad because he'd always made the most comments about my stutter and me self consciousness about it. For blocks I sometimes try the soft start technique where you start every block causing sound with a h sound under your breath just to get the air flowing. Like if you block on "B" sounds and want to say "because" then you say "hhhhhhhbecause" it's a bit of practice to do it subtly but it can be almost unnoticeable