Besides Burt, Sue (Jane Lynch) also offers some encouragement to Kurt. She tells him not to allow himself to be pigeonholed. "So you like show tunes? Doesn't mean you're gay. Just means you're awful," are just some of the semi-comforting words Sue offers before tuning out and walking away. Still, the fact that she stops and speaks with him, and encourages him to be comfortable with his flamboyant self, is a nice touch for a character who has been pretty uneven these past few of episodes.
Then there is Puck's pursuit of Mercedes. It's a little like how he eventually goes after Lauren Zizes (Ashley Fink). Both are girls with curves who reject him, and then he sings an insulting song to win their hearts. Mercedes joins in, as "The Lady Is a Tramp" isn't all that offensive, and it's a good tune. And she's OK with being used by him, because she's sort of using Puck, too. Until she dumps him and quits the Cheerios because popularity is overrated. As such, their relationship is never as real as the one Puck has with Zizes later. Perhaps the writers like this idea, and decide to revisit it with different results next year?
What is really strange is that Puck claims, in a voice over, to not know Mercedes' name. They've been in a glee club together all year; a small group. No matter how lazy he is, he would pick it up before now.
But that aside, it's nice to see Puck interested in a girl of substance, even if he has ulterior motives. He puts his heart into the effort, becoming obsessed with all things he feels might be part of "black" culture. Maybe it's because his Mohawk is gone, but Puck seems sweeter and softer in "Laryngitis" than in other Glee episodes, and it's a nice change to see this side of him. Salling can play friendly as well as bad ass.
The other weird part of this plot comes when Santana (Naya Rivera) gets jealous of Mercedes and Puck, even though she never has been, at least not overtly, of Quinn (Dianna Agron). Or, maybe she is too afraid to confront Quinn, who is carrying Puck's child, because of Quinn's previous reputation. But fear doesn't seem like something that would stop Santana. And when did Puck and Santana ever establish themselves as a couple anyway? They both play the field.