Man, if I give out all my secrets . . . lol, no, just kidding.
The difference: when I slightly tilt my head and my eyebrows are off center just a little bit, and there's a subtle look of curiosity in my eye's and my voice gets a little lower, and softer when I speak (and maybe a slight smile, too) - It's the "I'm attracted to you stare.
Otherwise I'd be quick to smile and just give out a "hey" and not think about it. that's the friendly stare.
ive learned any type of staring for longer than 3 seconds or if it continues all the time when you see that one person, it is definitely the IM ATTRACTED TO YOU type.
staring isn't polite at all.it can only mean eye candy, checking out, attraction.all my guy friends told me this, when I asked em before too.
if a guy respects you and is polite, he should drop his gaze.same goes for a grl.we naturally drop our gaze to be well mannered and polite.but once those eyes are spark lit and you can't help it.it can only mean one thing ;]