> Yes, you do have every right to go out on public property and literally speak.
No, you don't. Most states have laws that prevent you from doing that at a polling place on election day:
For example:
https://www.nass.org/sites/default/files/surveys/2020-01/sta...
> During the hours the polls are open, a person who is in the polling place or within 200 feet of any entrance to the polling place may not attempt to persuade a person to vote for or against a candidate, proposition, or question.