Of course you're telepathic, too. There's a mental sigh that Shen Qingqiu puts zero effort into disguising, since the guy can hear him regardless. Instead, he sets aside his mental prattle and peers through the crowd, listening.

I don't think they perceive you fully. So far, the singer continues her song. It's difficult to ignore, like a compulsion.

His instinct is to continue toward that stage, and with Blue taking care not to disturb those along the way, he mostly picks out his progress by... hearing nothing noting his progress. He grimaces, then looks around, spying a stool nearby that he relents to crawling toward while firmly thinking about nothing but the song, so that Blue hears it by proxy, until he's scaled the frigging stool and can better see what's going on.

Oh! To your left, see that side of the stage? The singer's favouring it, I suspect something may be behind her or around her feet. What do you see, when you look there?