If a guy stares from far, does it mean he want to talk to me?

A guy was standing, facing my direction & staring at me. I'm not looking directly at him but from my peripheral vision, I can sense he's staring at me. I feel so awkward that I have to turn my face to look the other side.

Does he want to approach or talk to me if he's staring for long? If I know, I can just approach him...
If a guy stares from far, does it mean he want to talk to me?
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