"Hmm." is what Big Boss says to as she stares at you in your cage, of course she isn't going to trust you knowing you almost killed her, twice, once in Cyprus and the other just recently in Afghanistan. Even though she beat you once she still doesn't trust you, knowing you're Cipher and all.
Big Boss would grunt as she takes out her cigar, a fake one surprisingly, she leans up against the bars to your cell, looking at you with her one eye, giving you a closer look at her scarred up face and her shrapnel horn. You can't help but both admire her and feel bad for her. As she blows out a cloud of smoke she continues to look at you with her gruff look before speaking up "What's with the appearance?" she says gruffly, eyeing your half naked appearance that helps you breathe and keeps you alive