The former England captain, 37, signed a five-month deal with the Ligue 1 side on the final day of the transfer window.
PSG are Beckham’s sixth club of a 20-year career that has seen him play in England, Spain, Italy, and most recently, the United States with LA Galaxy.
“I don’t know if it will be my last contract,” said Beckham. “People will always speculate whether it will be my last contract – we will see. My passion is about playing football.”
“I can still run around like a 21-year-old. I haven’t lost my pace because I never had any pace,” he joked.
Beckham cited a number of factors for his decision to move back across to Europe, including current PSG manager Carlo Ancelotti, who he played under at AC Milan.
The Leytonstone-born legend lauded the Italian, having completed two loan spells at AC Milan playing 29 games in 2009 and 2010.
“I was lucky to work with Carlo (at AC Milan] for a few months,” Beckham said. “He was one of the best managers I’ve played for so it’s exciting on a number of levels.”
However, the England legend hinted that his involvement with the Qatari-owned club could be stretch beyond his playing days.
“I think a long term partnership is what we are looking for,” he continued. “Short term obviously playing, long-term here is something we are very proud of.
“To be apart of this organisation that will grow and become one of the biggest clubs in Europe.”