Bolt, the world's fastest man, left the rapidly emptying stadium all smiles after posturing his way through a simple 100 metres heat.
His grin was matched by the joyful Kenyans who swept all six medals on offer on day one.
While confidence was in short supply in some quarters, ebullient Jamaican Bolt exuded it as he gestured to the crowd, fashioning his hair with his hands and using his fingers as pretend guns to fire at television cameras.
He was never tested in his heat, easing up after 60 metres yet still finishing the fastest qualifier in 10.10 seconds, 0.02 ahead of young compatriot Yohan Blake.
"I feel great. My goal is to go out there and execute, I came out and I did what I wanted to. I got my great start and I'm happy with that," he said.
"My focus is to go out there and win and show the world I am still the best... nobody has beaten me all season and nobody has broken my world record."
Bolt brushed aside talk of his vulnerability.
"They are going to always say whatever they want," Bolt said.
"I am focused on what I want, my focus is to go out there and win and show the world I am still the best."
Bolt's quest to retain the title he won in a world record time two years ago in Berlin has been eased by the absence through injury of his most likely challengers, American Tyson Gay and fellow Jamaican Asafa Powell.