Do guys blush or their ears get red when they like a girl?

This guy was near me.. and suddenly his friends teased him with something about me.. Like he stays to much next to me haha. And suddenly his cheeks went red and his ears too. I saw it and I asked him. His answer was that it s too hot in the room and he went to the window to open it. That wasn t , wasn t it?
Do guys blush or their ears get red when they like a girl?
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