Lol take off your Marvel fanboy blinkers for a second there lad. Definitely appears that Thanos reaches out to either strike Cap or grab him, Cap appears to block the shot and there is seemingly a brief struggle. It even looks to me that a look of surprise/frustration? comes over Thanos face. Thanos should have no trouble whatsoever with a roided up superhuman and the only way I'll buy it is if Cap has indeed had some kind of power up.
Just rewatched the trailer several times in good quality on my 42 inch screen and even paused it at that moment. I can't see any evidence of glowing eyes. Guess fanboys see what they wanna see
That's not to say that their isnt some plot device in play to enable Cap a snowflakes chance of even lasting more than a few seconds with Thanos.
Don't get me wrong I'm absolutely stoked to see this but I'm not going to just blindly disregard anything that seems off or dubious to me.