If a guy doesn't approach you he isn't interested?

"guys who dont look/stare at you, dont approach you aren't interested"

- i feel like this is true, not every guy is the same, but i feel like its applies to most guys. So if i dont catch a guy looking at me on a regular basis and/or approaches me i can't be interested.

Is there any truth in this? What i wrote obove is just my personal experience/belifes
If a guy doesn't approach you he isn't interested?
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