I'm registered to vote and do.
My front yard has no less than 4 campaign signs for local politicians.
I am active in my local Republican Party.
I am assisting 3 candidates with their campaigns and have spoke for them at functions.
If there is an election, everyone who is able to vote does. If you do not go to the polls and cast your vote you have cast a vote for whomever wins the election. I do not believe there is such a thing as neutrallity. If you choose not to decide you have still made a choice. A "no-vote" is still a vote for whomever wins.
Read Robert's Rules of Order. It clearly states that "silence is consent". In a meeting ran by Robert's Rules of Order, failure to vote Yes or No will count you as a Yes vote.