Trout, 24, weighed in Wednesday after recent comments by Bryce Harper and Goose Gossage turned the dial up on the idea that the future of the game hinged on whether to flip or not to flip.
"I just keep it the same," Trout said at spring training in Goodyear, Arizona, according to the Los Angeles Times. "I don't try to show anybody up. Whatever somebody else does, that's what they do."
Harper, the Nationals star and reigning National League MVP, said in a recent interview with ESPN The Magazine that baseball is "a tired sport, because you can't express yourself. You can't do what people in other sports do. I'm not saying baseball is, you know, boring or anything like that, but it's the excitement of the young guys who are coming into the game now who have flair."
Harper said he has no problem with a pitcher showing emotion on the mound, and he wants that same latitude.
But Trout, a four-time All-Star and the 2014 American League MVP, doesn't see it the same way.
Trout said he often can be found flipping the bat in "the batting cage and stuff," but that in a game situation such behavior is out of bounds.
"During the game, I just hit the ball and go," he said.
Trout said bat flipping is "definitely" showing up the pitcher.
"As a pitcher," he said, "I'd be pretty upset."