A. I'm not sure how to tag Sanae's facial expressions here. The second one, in particular, I know is some kind of meme associated with her.
B. I'm 80% sure Yukari is wearing a mask and the eyes changing are just artistic license. However, I'm not positive. Once into the color pages (and I'm almost there), it becomes almost definite, but since I can't tell on this page, I'm just not tagging... that at all. It's worth noting that earlier the lines were clearly just facial markings, and I tagged them as such then.
I was...If you'd please?Yocchan! We came to help!Energetic, huh.saved by Yukari...?Attention, please!Before Gensokyo falls into disorderYagokoro-sama will tell us how to defeat that youkai.