Recently someone told me that you had said that men should cover more than the private parts as part of hijab. Can you explain this ruling? Is it because it is Haram to show things that may cause others to look at a man in a Haram way?

Yes appearing in a way that provokes the opposite sex is haram. So a man must dress modestly in front of women. Wearing shorts and showing one’s six pack (as an example) to women would not be permissible because it normally attracts haram looks.