Bo Guagua to remain in United States Prof Vogel told journalists in Singapore, which he is currently visiting, that he also offered Mr Bo advice on transforming his image, suggesting he volunteer for community work. Mr Bo gained a reputation for partying and boorish behaviour in England, where he attended Harrow School and Oxford University. His mother apparently enlisted the help of Mr Heywood, a Harrow alumni who is thought to have had business links with the Bo family, to ease his entry into the elite public school. Earlier this year, Mr Bo denied reports that he had betrayed his family's communist roots by wild partying and driving flashy cars. However, police records show he picked up three tickets for driving violations in Massachusetts while behind the wheel of a black Porsche. Professor Vogel said that Mr Bo had decided to keep a low profile from now on, adding that his playboy image was "greatly exaggerated." Arriving in a limousine, the youngster declined to speak to journalists at his lavish graduation ceremony held in a white tent on the lawn in front of Harvard's Kennedy School of Government overlooking Boston's Charles River on Thursday. A brass band played John Phillips Sousa marches as the graduates entered dressed in black caps and gowns with red mantles. More than 1,000 friends and family members gathered in chairs on the grass around the tent for the one-and-a-half-hour ceremony for the 500 graduates. They carried inflatable beach balls, which they tossed around on the lawn after the graduation ceremony. Security was tight and onlookers were kept away from the stage to ensure they could not take photographs. When Bo Guagua's name was called to receive his diploma, his fellow graduates gave a loud cheer. He smiled broadly as he picked up his degree and shook hands with faculty members. Asked about his future plans, he told reporters: "I just want to enjoy the day and spend time with my classmates." Mr Bo, who still speaks with a British accent, rents a flat near the Harvard campus. If he chooses to remain at the elite university for his law studies, it is unclear how he will pay for the approximately $47,600 (£30,400) in annual fees. On top of that he must pay his rent - which would be $25,000 (£16,000) a year even if he gave up his flat and moved to a student dormitory. Mr Bo and his lawyer wife have been heavily criticised for accumulating vast sums of money during their time as the "power couple" of China's Chongqing Province, when he was earning an official salary of around £13,000 a year. It has been rumoured that the younger Mr Bo's studies have been funded by wealthy benefactors who hoped to curry favour with his parents, and it is unclear how his their fall will affect his ability to support himself in the US. Taking both business and law degrees is common among high-powered students in American, particularly those with political ambitions. Mitt Romney, the Republican presidential candidate, has business and law degrees from Harvard. In China, accumulating degrees from prestigious western university is seen as a status symbol. Orville Schell, director of the Center on US-China Relations at the Asia Society in New York, said: "There is such a fascination with brand names; just as they want to wear Hermes or Ermenegildo Zegna, they also want to go to Harvard. They think this puts them at the top of the food chain.