On May 10, come to your precinct prepared with a list of your chosen candidates, but it would be better if you would practice shading the ovals beside your choices using sample official ballots.
Comelec has released local ballot templates down to the district level or what should appear as your official ballot on Election Day.
Find a copy of how the official ballot to be used in your precinct in the Comelec website.
Following are sample ballots containing only the candidates for national posts: