Mabutho
A person who starts off looking like they're about to run away but once you hit them with the right conversation, they turn into a confessional booth and don't stop talking until the music stops.
'I thought she was going to run out of the room, but when I asked about her crush, she started talking nonstop for 10 minutes.'
'He acted like he didn't want to talk, but when I mentioned his favorite band, he told me everything.'
'She looked like she wanted to hide, but when I played her favorite song, she cried and started telling me about her ex.'