He is always honest about his feelings and instincts.

Whatever you want to say, say it honestly and don't hold it back.

He tries to do whatever he wants.

Complain about things that are inefficient or irrational.

He's just too honest

I can't tell the difference between what I should say and what I shouldn't say,

It often causes trouble.

Sometimes, depending on the situation, he will say he doesn't want to transform and run away.