見つめてる霊夢と恥ずかしがっている魔理沙です。
じっと見つめられるとやっぱり恥ずかしいよな（コミュ障）

This is Reimu, who is gazing at Marisa, who shows signs of feeling embarrassed.
To motionlessly stare is really embarrassing, as you know (communication failure)