for example I walked past these two girls today to go to the store, they were going the opposite way but then when I went to the shop I saw them come in, and stare at me for a good few seconds. Is the attention positive or negative?
Whether the attention is positive or negative is up to you. Hell, guys stare at me, I'm not calling it positive even if they want to call it flattery. Some will stare because you're attractive, others are people watchers, some will be jealous and want to linger on that note.
What matters is if you find yourself attractive and you don't fuss about those around you. If you're fishing for the comfort or assurance, yes, you're attractive. You've got unique qualities to your features, which attracts most eyes.
Next time look back at them and give them a cocky smile, if they smile back or get awkward they were most likely admiring. I've said it before but you look like a model, you are extremely good looking bro! You look like the actor who plays dorian in the picture of dorian grey 2009
I think you have a really interesting face, like woah. It probably sounds creepy but I meant it in a positive way. I totally agree with the other people here that you're kinda attractive tbh. So don't worry about the attention being negative! :)
Dude, I'm not gay, but you're like a doll or something. I mean, you look very very good, so I'm pretty sure they're positive reactions. The reason why they may not approach you is perhaps because they're too shy. Happy? You probably knew this already, but you wanted to post it, am I right?