Wildcat McCane, I don't think you have any idea what you're doing! You haven't got a clue what's going on!
Now, if those comments got your hackles up right away I think it will make my point.
I also had no idea, no clue, what I was doing. A girl made a comment to me, "Why did you stare at them like that?" Huh? I didn't think I was staring. A little later, "See, you did it again!" I thought, man, this girl's getting weird here.
Then I began to watch 'me'. Wow, she was right! Several times before I'd had encounters with guys that I didn't expect, like them getting aggressive. How come? Because of ME! I was staring at them and plenty of people take that as aggressive behavior, a challenge, "You looking at me, punk!??"
You stated that you STARED at them for 20 seconds, a third of a minute, and then turned and stared at them as they walked away, after passing you. Hey, guess what? That's pretty aggressive, especially in the bars I used to hang in. And in the bars I went to guys didn't spend their time looking at other guys below the belt, reason enough right there to get your teeth punched in! That crotch eyeballing wasn't included in the 20 seconds, because the 20 seconds were spent watching their eyes closely.
So, these guys are leaving a bar and some guy comes up giving them the stare down, spends 1/2 a minute watching them intently, and then he's checking out their crotches, plus turning to watch them as they walk away. And you're surprised they didn't like that much, and maybe thought you were a potential problem? Or a little perverted?
You seem to have a confrontational state of mind and also regularly engage in confrontational behavior. In other words you challenge people continually, whether you know it or not. I know I did, but only after it was pointed out to me.
I changed my ways, like others here have suggested. Now everywhere I go, everyone I meet or pass, I try to give a nod, or a friendly smile, or 'Hi' or 'How ya doin'?' or whatever. Downright amazing how many nice people there are out there, who smile back and say hi. Haven't had to shoot anybody all week and it's Tuesday already.
Like others said, you maybe need to take a close look at your own mind set before you go and shove a pistol in your pocket. A hair trigger temper isn't allowed for those that carry....