" All those personal pronouns and social relationships, for one thing. But there are other clues: females tend to progress information using the negative, such as “I don’t think”, or “our future is not as a couple”. They hedge – you know, use polite forms – to soften the information – “perhaps”, or “I’m sorry if …” – and they refer more to cognitive and emotional processes: think, feel, hope. "
― Rachel Abbott , Stranger Child (DCI Tom Douglas, #4)