One common tactic is to portray the help we need as so small, that it is barely a favor. "Would you add these updates to the database? It won’t take you more than five minutes.”
It is conveying that you think the work the other person does is easy, quick, trivial and not very taxing. That’s not a great way to enlist help. You might also underestimate the size of the favor. Do not presume it won’t take them very long the next time you ask them for help.