What is "unbends"

Usage examples of "unbends".

At first glance he always strikes you as a little on the stuffy side, or at least over-correct, but he unbends when he knows you and he's a very astute lawyer and a deadly, if cautious, poker player.

We at first attributed the straightening process to the radicles becoming accustomed to a slight stimulus, in the same manner as a tendril or sensitive petiole becomes accustomed to a very light loop of thread, and unbends itself though the loop remains still suspended.

The unpleasant part of all this is that the young women he so condescendingly selects as partners for the dance greet him with seeming rapture, though in their hearts they must feel humiliated by his languid hauteur, and many older people beam upon him almost fawningly if he unbends so far as to throw them a careless, disdainful word!

He thinks of nothing else save when, as an intellectual exercise, he unbends if I call upon him and ask him to advise me on one of my little problems.