How to not be embarrassed/fearful during career fair because of lack of experience?

I am a recent business grad, but don’t have any professional work experience. I have done some relevant volunteering and worked in the service industry, but haven’t done internships like many of my peers have. Because of this, I am extremely fearful and embarrassed to attend the upcoming career fair my institution offers. Does anyone have any advice to overcoming this fear of speaking to employers with no experience?

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