Guys only come or to you if they are really into to you? Why they do eye contact if theyre not?

I mean if I guy doesn't approach to you, or make the first mové its bc he is not attracted to you. Or what's the reason? Why they would do eye contact with you if they're not interest d.
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I'm not saying that guys are not allowed to look or should look other parts, I just asking if guys who make eye contact are attracted and why don't approach. Sorry if some people misunderstood what Im trying to say. Maybe I didn't make myself understood very well...
Guys only come or to you if they are really into to you? Why they do eye contact if theyre not?
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