President Obama and the first lady greet their daughter Malia after her graduation ceremony at Sidwell Friends School in Washington. (Roger Catlin)

When Sidwell Friends School asked the president whether he would like to speak at his elder daughter’s graduation this spring, he declined.

“I’m going to be wearing dark glasses,” he told a group of lunch companions during a visit to Detroit earlier this year. “I’m going to cry.”

Barack Obama was true to his word Friday. He did not speak at Malia Obama’s commencement ceremony, which he and the first lady attended, along with family and friends of other graduates of the private school in Northwest Washington.

“He was just a total dad,” the mother of a graduating senior said of the president. “No fanfare. You didn’t know they were there.”

If the president did cry during the outdoor ceremony, his tears may have been hidden behind his sunglasses.

Inside the gates of the school’s campus, nestled in the woodsy fringe of Tenleytown, Malia was just one of 127 graduates. Like the other young women, she wore a white dress — the young men were in suits — and walked down the stairs of the Zartman House administrative building to take her seat on the lawn beneath vines of wisteria.

Malia and her dad in April. The president has attended fewer events at Sidwell than his wife, possibly to avoid causing a disruption on campus. (Pablo Martinez Monsivais/AP)

At Sidwell, shown here in 2008, graduation was a more restricted event this year, with security measures and tickets required. (Nicholas Kamm/AFP/Getty Images)

Over recent months, Barack and Michelle Obama have expressed sadness and pride as their daughter has grown up. But primarily, they have been protective as Malia transitions out of their cocoon and into adulthood. She will turn 18 next month and has been accepted to Harvard. Her parents have said she will take a gap year, allowing her to enroll after her father’s term ends.

The White House announced that eldest daughter Malia Obama will attend Harvard University after taking a gap year. Editor's note: A previous version of this video incorrectly said that Malia Obama would have Secret Service protection at Harvard. (Thomas Johnson/The Washington Post)

Sidwell did its best to close the ceremony to the media. The Obamas, who also celebrated the 15th birthday of younger daughter Sasha on Friday with a post-ceremony luncheon at Georgetown’s Cafe Milano, wanted to treat the event as a family affair — and the school and others in attendance tried to respect that desire.

President Obama drew no attention to himself, and there was no special attention paid to the first family during the ceremony. Sidwell, which also educated the children of Bill Clinton, Richard Nixon, Herbert Hoover and Teddy Roosevelt, emphasizes equality among its Quaker traditions: Awards are not handed out at graduation, and VIPs get no special recognition (although heads did turn when the Obamas passed through and, after the ceremony, the president and Malia posed for a couple of photos with well-wishers that quickly ended up on social media).

“You have important people, dignitaries. But they are treated like everyone else,” said Giulia Adelfio, a 1979 graduate who attended the school’s commencement last year.

“They try to make it as seamless as possible for everyone. There’s no hoopla around the first family here,” said Phronie Jackson, whose son graduated in Malia’s class Friday.

The president, meanwhile, has spent less time on campus than his wife, perhaps seeking to not disturb the community. Visits by the first lady and her entourage to the school have caused relatively little fuss, said Robin Gaillard, whose daughter graduated from Sidwell two years ago. “However, when President Obama came on campus, things tightened considerably.”

President Obama stood and clapped when Malia’s name was announced at graduation. “You have important people, dignitaries. But they are treated like everyone else,” a Sidwell graduate said. (Roger Catlin)

Special security measures were taken so that the Obamas could attend graduation, but other parents said the presence of Secret Service had not been overwhelming — until Friday morning, when police lined Wisconsin Avenue around the school and guests had to pass through metal detectors. The ceremony, usually open to the public, required tickets this year. And one attendee noted that the traditional class pranks played on administrators seemed to have fallen by the wayside this year.

Like her classmates, Malia Obama walked across the stage to receive her diploma from Bryan Garman, the head of Sidwell Friends; like other dads, hers stood proudly to applaud at that moment. They also heard a commencement address from the poet Elizabeth Alexander, a 1980 Sidwell graduate who was launched to national prominence when she read an original work at the president’s 2009 inauguration. (“Maybe some of you were there,” Sidwell Board of Trustees member Margaret Plank said coyly while introducing her.)

It was the closest the low-key Sidwell ceremony came to presidential pomp. When Chelsea Clinton graduated from Sidwell, in 1997, her father spoke. Joe Biden, who has had three grandchildren attend the school, gave a commencement speech in 2012.

But on this day, Barack Obama, who built his political career through soaring oratory, was quiet.