Crow is weird, but interesting! Robots are commonplace in Ro's time, and Crow looks pretty antiquated to her (lt's like somebody tried to use a lacrosse stick for a sensor net), so the fact that he eats and apparently gets humor is a weird juxtaposition. Humor is totally beyond Zeta, and he's pretty advanced as it is.

...okay homework has killed my brain cells, but basically Ro has started to get past the "wow you are weird" phase into the "hey, that's kind of cool" with regards to Crow. :)