Mmmm, something like this happened to me when I was 19 yo, it was two different guys but in the same day (just different time), and I have to admit it felt pretty weird. The first guy was a hottie but he understood that I felt uncomfortable and leave, which it was nice and it felt good tbh; but the 2nd guy was super weird and I got a little scared.
If I have to be honest, I think I prefer if people don't approach me and don't talk to me, especially if I don't know them. I know it may be unfair for them but who can tell if they're dangerous or not (I live in a big city but I've heard of many ugly cases of men with women so yeah). I think I prefer to meet people through mutual friends or at university, etc. But idk, here this Rang guy was refreshing and it felt nice, Won is still my favorite so far tho.