5. Be a man!
Why would you attack his manhood like that? If there’s one thing that most guys are going to be deathly protective of, it would be their manhood. Any remark threatens or questions their strength is one that they aren’t going to be too fond of hearing all too often. They would never have to want to put their power up for questioning.
6. Why don’t you go to the gym more?
Uh oh. You might as well have told him that he looks like he ate a hundred Big Macs in a single sitting. If you ask him about his exercise routine (or lack thereof), it might be telling him that you think he’s fat. Even if that’s the case, there is a less passive-aggressive way to let him know what you think about his weight.