Arsenal striker Olivier Giroud says he has been working on controlling his emotions during matches in his attempt to have Diego Costa's attitude on the pitch.
Speaking before yesterday's game against Monaco, the 28-year-old said he wanted to be "less demonstrative" during games.
But he was not shy to show his emotions after missing numerous chances in last night's 3-1 defeat at the Emirates.
"When I do this [putting his head in his hands] after a missed chance, the coaches get a bit annoyed," Giroud told L'Equipe.
"They want me to have a 'killer' attitude, almost insensitive.
"Diego Costa shows no emotion. I am more emotional. I have therefore learned to control my emotions. I try to be less demonstrative.
"With age, you get a little bit cleverer. I have learned from my mistakes.
"I have changed my habits, my way of training. I do a little bit more gym work and muscle work. I weigh one or two kilos more. I am gained in explosivity and I am more mobile."
Meanwhile, the Frenchman believes he is not far behind the dominant duo of Diego Costa and Manchester City striker Sergio Aguero.
"I don't have an inferiority complex," he said.
"I might not have their names but when you look at the statistics, I am only just behind them."