Right. Watch their actions. If they say "Don't worry about it" but they walk away and slam some doors, they are angry about something. Maybe wait a few hours then ask them if they want to talk about it.
However, his reaction is VERY MUCH based on how you react to confrontation, your ability to admit you are wrong, and your communication skills. If the woman acts like a 12 year old, and gets defensive about everything, the man will clam up, but still act pissy.
This directly relates to what oldskool83 said: Men don't want to talk because women can't handle it. But I might add, it's the immature women that can't handle it. Now I'm in my 40s, the women my age are MUCH better at communication.
Let's hear it for the 40+ crowd! 40s in da house!!
Now form a circle with your walkers.
I have a long time interest in psychology, specializing in relationship dynamics for 30 years.
(Please note, we give the best advice we can based on the information given in a post. For better advice, please include the age of all romantic partners.)