Know the date of your next election
Confirm that you are registered to vote
Make a plan to vote - by mail, early or in-person
Extra credit: Help a newly minted 18 year old register to vote. And if they will be out of town for the next election, prepare them to vote by mail.
Make a list of people in your personal network
Reach out to them to make sure they will vote
Get them to call their friends and family
Repeat
Win
Volunteer to work at the polls
Volunteer to work a voter hotline
Amplify GOTV messaging on social media
Back a specific candidate - contribute, volunteer
Support a specific issue - contribute, volunteer
Mobilize voters for a specific ballot question
Thomas Jefferson