Manager Annoying About New Shoes

Now he's strutting around the office all day asking us whether we notice "anything different" about him, then he gives this really stupid smile. He's done this to the same people more than once. He came up to me and I just said "Yeah, it's the shoes." before he said anything. He smiled and went back to his desk and started laughing and staring at his feet. Is this a tiktok prank or something? The shoes don't even look that cool. They're just something from Nike.