Another one of my metro stories. Another day, another ride back home, extra crowded. As always I just zoning out, listening to music, drowning out all the sounds around me. As the metro got further along the route and space frees up, I start to move and this guy who was taking to this woman puts up his arm between her and I, like if I was gonna say something to her. Normally I wouldn't give it a 2nd thought, but it happens again as the train was stopping and I was heading towards the door, a 2nd guy does it with a girl he's talking with. This time, I gave him a bizarre look like what's your problem? I don't understand what I did for two different dudes to make the same kind of gesture and what does this gesture mean?