"Hi Morisuke-kun! Nice to meet you. I'd like to ask some questions if it would be fine with you.
Q1:Have you ever liked someone? As in like like?
Q2: If yes,what does it feel like to see him/her face to face (if it had happened)?
Q3: I have never liked a real human being since I have always stayed with fictional characters. So I know I'm a complete stranger but, who do you think will be good for me on your team?
I know I'm weird! I'm sorry... It's just that, I've never felt those feelings before... Don't mind me anymore.
Thank you Morisuke-kun! Bye!"

Before I answer any questions I want to let you know that it's fine not to have feelings for anyone, it's not all that weird. You don't need to have a crush on anyone, you are your own person, so don't ever feel like you have to have a crush, ok? You're not weird, and actually quite lovely if I can infer anything from your politeness in you comment.
Ok, so question one, I have indeed have a crush on someone. I won't disclose who it or, but yes, I've had a crush on someone.
In regards to question two, when I have seen them face to face, in which I have, I'm often really shy, I gain a slight stutter, and I smile a lot, feeling happy in the presence of the person I like. I'm usually much more cheerful when talking to them, though when I realize I'm being too smiley I try to tone it down.
Question three is difficult, since I don't know you very well, but I can try my best. I would like for you to date Kuroo or Lev because of your politeness and manners, that hopefully might rub off on them, but if anyone were to be good for you, it probably would be someone more toned down. The ideal person for you is someone who would like you as absolutely as you'd like them, and you'd know it, from what I can guess. I don't know much about Fukunaga, but he's quiet and respectful, and quite cute, so I think he'd be a nice match, once you'd get to talk to him.
Thanks for asking all these questions though!
A note for readers: If you say that white floppy bendy straw was my crush, I'll send you straight to hell, there's a point to which it gets uncomfortable.