
If you want to get someone’s attention – “Hey You!” Is probably not the most polite way to go about it, but it would work.An extremely polite way to get someone’s attention is to say:
I beg your pardon, sir.
I beg your pardon, ma’am.
I beg your pardon, miss.
(However, I rarely (if ever) hear people say these where I live.)A typical and still polite way to get someone’s attention is to say:
Excuse [...]