Why does a group of guys frequently stares at me?

In my chruch a guy frequently stares at me and he says something about me to his friends and they will also stares at me and nowadays more than him his friends stares at me constantly. Yesterday one of his friend stares constantly at me more than 5 minutes and then he said something to the another guy and he started to stares at me with a laugh for a couple of minutes what does it means?
Why does a group of guys frequently stares at me?
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