Character Scenario/Invitation to a Date?

As I was heading towards the student dormitory, I spotted Yoshino sitting in front of a bench. She seemed to be reading, as she had a book open. I decided to just observe her from a distance for the time being, as I didn't want to disturb her.
Yoshino	"Oooo- got it, hmmm hmmm. This is great. This is very informative."
Is this some kind of tactical book? She looked so serious that I can't help but catch my breath.
Yoshino looked up from the book she has been reading. Her expression is unusually sharp and tight.
Yoshino	"Ichiban is an important goal to aim for. Yoshino has been impressed. Benkyou, very important."
This line seems out of place coming from Yoshino, she's the one who bursted out laughing at Putra's seaweed pose, but perhaps after the battles against the Phantom Mist, I guess she has gained interest in self-development.
Yoshino	It's also written in this reference book. One must be sente hisshou. Ichigeki hisatsu. Yoshino should decide on this."
Yoshino	"But what is 'mess up mess up...♪' What's being messed up? Sigh. Does it mean ears? Not the ears. No, not the ears. This is said twice because it's important."
Yoshino held her ears, then wiggled and twisted them.
Yoshino	"It's not easy. But Yoshino will do the best. First of all, have to start with practising pozu."
Yoshino, refusing to give up, gets up from the bench. Then, suddenly...
Yoshino	"Eat."
Huh?
Yoshino	"Eat, eat."
She placed one hand on her waist and the other on the back of her neck. Then she started twisting her hips from side to side.
I don't think she's imitating seaweed. Could be an imitation of kelp, or perhaps an anemone. No wait, there shouldn't be any seaweed, kelp, or anemone in tactics. Then what is she doing? I don't know.
Yoshino	"This is a very hard one. But Yoshino will do her best. Going to go one step higher."
Unable to comprehend anything, Yoshino eagerly resumed her practise alone. I pushed my embarrassment aside and continue to watch her.
Yoshino	"And with this angle, Shashou is staring at Yoshino."
Huh?
Yoshino	"After that then he eats me."
Yoshino, looked up, twisted her hips, in time with the line.
Yoshino	"Shashou, come 'mess up' Yoshino."
Conductor	WAIT! WHAT THE HELL IS THAT!?
Yoshino	Ooooh- Yoshino was able to lure Shashou here even though it's just a rehearsal. As expected of an adult woman's kyoukasho, it's amazing."
Conductor	An adult woman's textbook? I thought you were reading a tactics book.
Yoshino	"Tactics books? No, this is the book Yoshino was reading."
Yoshino shows me the book on the bench.
"Textbook of Love♪ For Adult Women♪ ~Now You Too Can be Fabulous~ 78 Ways to Make the Man You Love Fall for You! Part 5!"
Conductor	This is all absolutely weird. Where did you get this book from?
Yoshino	"When told that Yoshino wanted to date Shashou, Karamachi gave this to me."
Conductor	The book choice is a problem in the first place, but I suppose this provided something that would satisfy needs, one way or the other. However, you wanted to go on a date, Yoshino?
Yoshino	"Of course. So let's go on a date with Yoshino. Shashou."
Her innocent invitation was not in the style of an 'adult woman', but with Yoshino's eyes shining with anticipation, how could I possibly have the option of refusing?
I decided to go to the town with Yoshino while she was on holiday.