When working from home, one often talks to oneself.

在家工作时，人们经常自言自语。

As the individual matures, that overt talking to oneself becomes covert talking to oneself, but thinking still shows up as a laryngeal habit.

当他们变成熟时，那种公开地自说自话变成了隐秘地自说自话，但是思考仍然以一种喉音习惯出现。