Editor's note: Editor's note: CNN will air "41ON41," a film about President George H.W. Bush, the 41st President of the United States, based on interviews with 41 people who know him best, at 9 and 11 p.m. ET Sunday, June 15. Neil Bush chairs the board of Points of Light, the largest organization in the world dedicated to volunteer service. He will join Chelsea Clinton to demonstrate that "Service Unites" on June 16 at the Points of Light Conference on Volunteering and Service in Atlanta. The opinions expressed in this commentary are solely those of the author.
(CNN) -- People keep asking me what my dad might like for his 90th birthday on June 12. I think I can answer that one.
He'd like to jump out of an airplane and feel that freedom one more time.
He'd like to have his family and close friends around him for a quiet celebration.
He'd like a good martini with a couple of olives.
But most of all, I know he'd like you, on the occasion of his birthday, to give to others. Volunteer service is Dad's true north. He made it a centerpiece of his presidency, encouraging millions of people to look within to find "your own special genius for helping others."
He gave 1,020 Daily Point of Light Awards from the White House to inspire people to volunteer and to prove that "somewhere in America, every serious social problem is being solved through voluntary service, for therein lies the greatest national resource of all."
In the years since he left the White House, Dad joined forces with former President Bill Clinton to support victims of Hurricane Katrina and the Indian Ocean tsunami -- and the volunteers who showed up afterward to help rebuild.
Last July, he and Mom traveled to the White House to join President Barack Obama and Michelle Obama and hundreds of others in a special ceremony to present the 5,000th Daily Point of Light Award to an Iowa couple fighting world hunger one meal at a time.
So what would he really like for his birthday? He'd like you to go to BeOne.PointsofLight.org and pledge to pitch in. As Dad said, "It doesn't matter who you are. Everybody's got something to give: a job skill, a free hour, a pair of strong arms."
I hope you'll volunteer as a way to honor my Dad -- or yours (Father's Day is Sunday). Or volunteer as a way to be good to yourself; researchers say it leads to healthier, happier lives.
Whatever your cause, whatever your motivation, I hope you'll agree with me that volunteer service is an extraordinary gift. Thanks for everything and happy birthday, Dad.