My opinion about Episode 1.

STIFF, but very very very cute. And I am not referring to his O△X#. 
(although you get a nice close up of his ahem! jeans in one shot)   ^ ^ ; He looks great in those jeans.

What he lacks in the acting, he makes up 120% in the cute department.

The character in the manga is stiff, so i guess he's playing the part. (imagines Aibachan trying to be ri-da-) DUH.....