Pop open his platform page and pretend he is being honest. Are there any policies that you would like to see implemented in your area?
If he gets elected and fails to substantially deliver on his promises, I'll be the first in line to disavow him.
Voting isn't the end all be all of change, but it is a method that has shown it can result in massive change (see Zohran Mandani and Donald Trump for the extremes of that change.)