Can't recall an expression of expressing a person who views himself or herself ordinary
I remember vaguely that the sentence includes "just like another guy in front of(？？） you"
Are there any examples?
Thanks.

Question

Answer

I'm a little unclear about your question. Are you just asking how to say that a person is just a regular person like everyone else?

Here are a couple of expressions:

- She's just an ordinary person.
- He's an ordinary, everyday guy. 
- He's an average Joe.  (This expression makes sense because "Joe" used to be such a common name.