"I do perform to a lot of people but I'm performing to their parents today. It's a very different crowd."
It provided McIlroy some mellow hours before he chases a third consecutive major title with a Masters win that would complete a career Grand Slam. "It was a lot of fun out there," McIlroy said.
Woods was joined by his US ski star girlfriend Lindsey Vonn and his children with ex-wife Elin Nordegren - daughter Sam, 7, and son Charlie, 6 - for a special stroll unlike those that led to four Masters green jackets.
"We had an absolutely great time," Woods said. "These were memories for a lifetime."
Woods, who has not won a major title since the 2008 US Open and not taken the Masters since 2005, will end a two-month layoff to improve his skills for his 20th Masters.
"He seems very confident in what he's doing," Nicklaus said after talking with Woods at the Champions Dinner. "When he says he is very well prepared, I believe him."
Nicklaus had joked before the round about having never made an ace at Augusta National, then lofted a shot over the lake at the 130-yard fourth hole that bounced twice and spun backward 20 feet into the cup.
There were five aces in all on the day, including South African Trevor Immelman at the fifth, Chilean amateur Matias Dominguez and Colombian Camilo Villegas after Nicklaus at the fourth and Villegas again at the eighth.
Villegas and American Kevin Streelman finished at 5-under and battled into a playoff that Streelman won in the third extra hole to decide a Par-3 Contest winner.
- AAP