... with teen girl guests that come to my cafe bar where I work shifts alone both behind and inside the bar?

Some of them would giggle and stare at me. I assume they find me cute since literally every girl I meet does, before getting to know me heh.

Anyways, how do I maintian eye contact in such situation? Tips? I'd just feel very awlward and act awkwardly pretending I am doing something thinking they are still looking ^ ^ '

I literally have no intentions other than not to shy my look away.