Olympics boss Jacques Rogge has told Usain Bolt to show more respect for opponents after the Jamaican claimed the first sprint double for 24 years.
Bolt showboated at the start and finish of his world-record breaking 200m race and slowed up yards from the line in the 100m final so he could celebrate.
"That's not the way we perceive being a champion," Rogge told Associated Press.
"I've no problem with him doing a show. But I think he should show more respect and shake hands after the finish."
Rogge said Bolt should "not make gestures like the one he made in the 100m", adding: "He might have interpreted that in another way, but the way it was perceived was 'catch me if you can.' You don't do that. But he'll learn. He's still a young man."
The other runners in Wednesday's 200m did not seem upset with Bolt's antics – American silver medallist Shawn Crawford telling reporters afterwards: "I love watching him when he does his thing.
BBC Sport's Tom Fordyce has no problem with Bolt's antics
"When he was introduced, he was dancing, and the crowd loves it. It adds a bit of sparkle and cheer."
Bolt told reporters he had "no regrets" about his showy 100m finish, or his antics after setting a new world best of 19.30 secs in winning the 200m.
"That's just how I am," he said. "I love to dance and show people my personality. It's fun and the crowd loves it."
Rogge's comments did seem out of kilter with the mood in the Bird's Nest stadium, where the crowd appeared to lap up his childlike joy at becoming the first man since American Carl Lewis in 1984 to win an Olympic double in the 100m and 200m.
Bolt won by the biggest margin since the 200m came on the Olympic scene 108 years ago, beating the field by two-thirds of a second to break Michael Johnson’s 12-year-old record by two hundredths of a second.
And others will also argue Bolt is simply continuing an Olympic sprinting tradition of colourful, showy champions such as Carl Lewis, Maurice Greene and Johnson, who called Bolt "Superman 2".
BBC Sport's Steve Cram said: "There was nothing wrong with it (the celebration).
"If Bolt was being disrepectful, then fine, but he's just done something that no other sprinter has done before.
"He is very good for the sport, he's a young man, it's his birthday and he's just become a legend in the sport.
"He is an exuberant character and if he wants to have fun, let him do it."
"Lightning" Bolt, as he says he prefers to be known, had brought the 91,000-seater stadium to its feet, running a record first 100m and then chasing down Johnson's mark over the final 50m, his eyes flicking left all the time as he checked the trackside clock.
When he dipped his lanky 6ft 5in frame for the line, the crowd erupted and Bolt embarked on a triumphant victory lap to the sound of reggae music, dancing a barefoot jig around his golden spikes while draped in Jamaican flags.
"It's just a dance from back home," he said in explanation of one knock-kneed display.
There was even a special rendition of 'Happy Birthday Dear Usain' played over the public address system – he is 22 on Thursday.
"I'm number one," the joyous athlete mouthed at cameras, thumping his chest and blowing kisses.
In his post-race interview, Bolt admitted he could barely believe his achievement.
Bolt showboated at the start and finish of his world-record breaking 200m race and slowed up yards from the line in the 100m final so he could celebrate.
"That's not the way we perceive being a champion," Rogge told Associated Press.
"I've no problem with him doing a show. But I think he should show more respect and shake hands after the finish."
Rogge said Bolt should "not make gestures like the one he made in the 100m", adding: "He might have interpreted that in another way, but the way it was perceived was 'catch me if you can.' You don't do that. But he'll learn. He's still a young man."
The other runners in Wednesday's 200m did not seem upset with Bolt's antics – American silver medallist Shawn Crawford telling reporters afterwards: "I love watching him when he does his thing.
BBC Sport's Tom Fordyce has no problem with Bolt's antics
"When he was introduced, he was dancing, and the crowd loves it. It adds a bit of sparkle and cheer."
Bolt told reporters he had "no regrets" about his showy 100m finish, or his antics after setting a new world best of 19.30 secs in winning the 200m.
"That's just how I am," he said. "I love to dance and show people my personality. It's fun and the crowd loves it."
Rogge's comments did seem out of kilter with the mood in the Bird's Nest stadium, where the crowd appeared to lap up his childlike joy at becoming the first man since American Carl Lewis in 1984 to win an Olympic double in the 100m and 200m.
Bolt won by the biggest margin since the 200m came on the Olympic scene 108 years ago, beating the field by two-thirds of a second to break Michael Johnson’s 12-year-old record by two hundredths of a second.
And others will also argue Bolt is simply continuing an Olympic sprinting tradition of colourful, showy champions such as Carl Lewis, Maurice Greene and Johnson, who called Bolt "Superman 2".
BBC Sport's Steve Cram said: "There was nothing wrong with it (the celebration).
"If Bolt was being disrepectful, then fine, but he's just done something that no other sprinter has done before.
"He is very good for the sport, he's a young man, it's his birthday and he's just become a legend in the sport.
"He is an exuberant character and if he wants to have fun, let him do it."
"Lightning" Bolt, as he says he prefers to be known, had brought the 91,000-seater stadium to its feet, running a record first 100m and then chasing down Johnson's mark over the final 50m, his eyes flicking left all the time as he checked the trackside clock.
When he dipped his lanky 6ft 5in frame for the line, the crowd erupted and Bolt embarked on a triumphant victory lap to the sound of reggae music, dancing a barefoot jig around his golden spikes while draped in Jamaican flags.
"It's just a dance from back home," he said in explanation of one knock-kneed display.
There was even a special rendition of 'Happy Birthday Dear Usain' played over the public address system – he is 22 on Thursday.
"I'm number one," the joyous athlete mouthed at cameras, thumping his chest and blowing kisses.
In his post-race interview, Bolt admitted he could barely believe his achievement.
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