Speaking ahead of their opening Euro 2016 match against Russia, England manager Roy Hodgson warned his team that simulation will not be tolerated.
Harry Kane was kicked in the head by Portugal centre-back Bruno Alves, but did not try to influence the referee by falling down as he continued with his run.
Hodgson commended the Premier League top goal-scorer for his sportsmanship, before adding that exaggerating contact is a bad habit that most players learn from the early stages of their careers.
"I think it has to be taught, if it's going to be taught, at a very early age and be part of your culture, but I've said many times I don't think it is part of our culture," the England boss explained.
"Harry's first instinct, when he didn't get kicked severely, was to carry on and to try and carry on and do something with the ball.
"Some people might say that's very laudable, others might say you've got to go down, you've got to be cynical.
"But I find the cynicism quite a hard thing to coach. The referee still made the right decision. He didn't need to go down on this occasion."
The coach added that his only desire is to help the side improve as they prepare for their first match against on June 11.
"I won't be spending time teaching players to stay down or feign injury," Hodgson added. "I want to teach players how to defend better and attack better.
"That's what I've been trying to do for four years and will continue to do so."