A Billings, Montana, high school senior went viral Thursday for the facial expressions he made in prime seating at President Trump's rally. During the rally, Tyler Linfesty was asked to leave and was replaced by a woman he believes was a campaign staffer, CBS Billings affiliate KTVQ reports.

The 17-year-old went viral with the hashtag #PlaidShirtGuy during Mr. Trump's rally for his looks of disbelief and raising his eyebrows. At one point, Linfesty was caught mouthing "what?" when Mr. Trump was speaking. During the rally, he pinned the rose emblem of the Democratic Socialists of America on his shirt, the Billings Gazette reports.

Linfesty told KTVQ that he won VIP tickets, which also got him a picture with Mr. Trump. Linfesty said Mr. Trump "gets the crowd really riled up, but the important part is to listen to the content of the speech."

The facial reactions of an unidentified man (center) in a plaid shirt standing behind President Trump led to the man's ejection from where he was standing and then went viral on the internet as videos spread of his reactions at the president's words at a "Make America Great Again" rally in Billings, Montana U.S., September 6, 2018. KEVIN LAMARQUE / REUTERS

"When I heard the policies, I disagreed with most of them," Linfesty said. "I knew what faces I was making, but those faces were completely genuine. I was not trying to make those faces, those were just faces that came out when I heard what he was saying. Some stuff I agreed with, some stuff I disagreed with. When I disagreed, it was pretty apparent."

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He told the Billings Gazette that he was told to "keep clapping, you have to smile, you have to look enthusiastic." But, he said, "I had to be honest in my views."

Linfesty told the Billings Gazette that a woman he recognized as a campaign staffer from earlier escorted him to a back room where police and Secret Service looked at his ID. After about 10 minutes, they told him to leave.

"They treated me fine," he said. "They just told me not to come back."

The two friends he attended the rally with were also asked to leave.