If you're voting in person, and are unclear about where to go, you can check on this online polling place tool.
At the polling place, you have the right to wear T-shirts or sport buttons supporting your favorite candidate. This is known as passive electioneering. You (and everyone else) are banned from active electioneering inside the polling place and up to 10' away from the polling location. Now most parties and candidates have volunteers stand near the doors to smile and hand you flyers before your vote. They're trying to follow the law, but some may just be 7' or 8' away. Let it slide. If someone is talking politics inside the polling place, however, let the elections judge know immediately.
This tendency to gab is normal, but illegal. It's why I shooed voters out of the room as soon as they voted.
If you see a problem that needs to be fixed immediately, call 1-877-VOTESPA.