Why do men never approach me even when they look interested?

Whenever I go out, I get a lot of attention from men. They look, stare, smile, stand closer to me etc. But they never talk to me. For example, last night I went out with friends for drinks. This guy stared at me, and kept smiling for hours. I smiled back several times. But nothing happened. I don't know what I'm doing wrong. What can I do so they start approaching me? Thanks for any help <3

Why do men never approach me even when they look interested?
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