this seems like a very extreme version of something i do (when i walk towards a couple especially if they're my age like early 20's, i never look at the man but only look at the girl, bc men are already over-confident and i don't want to give them attention)

what are the significant differences between a guy who isn't interested in you (or let's say he simply finds you kinda sexually attractive, but nothing more than that, he's not truly into you) vs. him being shy, or acting distant for whatever reason, but still being into you, more than just sexually?

i'm not very experienced with guys and i tend to ignore/act less talkative around people i find attractive. idk if this guy i've ran into is similar to me in that sense, or if he just ignores me because he finds me boring or something. i feel like there's a lot of tension between us and we both kind of ignore each other in favor of talking to the others, but i can't really rely on that "tension" assumption to be true since it could be just from me being into him, so it could be just one-sided tension from me.

give me a list of differences please.