Use "You"

Popular content often has a particular word in common: You. Whether it’s on the news (e.g., “Is there a dangerous chemical in your water? Learn more after the break”) or online (e.g., “5 Tips You Can Use to Land Any Interview”) the most read or watched stuff often uses second-person pronouns.

So instead of saying “we need help” or “every dollar helps,” nonprofits seeking donations might instead opt for “we need your help” or “every dollar you give helps.” If you can, try using names as well. This makes it feel like more than a generic or boilerplate request, but one targeted directly at them.