Y boys show interest but don’t talk to me?

Many guys at my job show interest but they are mute and don’t talk. They stare at you from near by or afar, or walk near your table many times on purpose to show they like you or ask for help many times as excuse for you to notice them. They will also on purpose walk near you , but don’t talk.
only very few social guys have talked to me but that’s because they are not shy they are very very social.
I’m 26 and never had experience to be approached by men. Only at my old job when I was 18 this guy talked to me and shook my hand as he liked me but he wasn’t shy like these guys at this current job I have.

Y boys show interest but don’t talk to me?
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