Former England captain Pietersen returned to competitive cricket after three months out with a right knee problem by playing for Surrey in a four-day match away to Yorkshire.
He marked the occasion by giving a radio interview to former England team-mate Darren Gough broadcast while he fielded at Headingley.
It was at the Leeds ground, where having made a superb Test hundred against his native South Africa, Pietersen gave a press conference where he said "it's tough being me in this dressing room".
"I probably didn't go about it in the best fashion," Pietersen told Gough on Talksport Radio yesterday.
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"You make mistakes and you get over them and that's the way you grow as a human being, by learning from things that you don't do well.
"So I take it on the chin, no dramas, it's just a case of looking forward and making sure that you do the right things now."
He is set to play for England in their pre-Ashes warm-up against Essex before the first Test against Australia on July 10.