Usually, I will talk as RC (I call him that as a nickname, he's Swapfell Red Papyrus), if I speak or respond with "
Anytime else, parenthesis or not, is just me until I say otherwise.

(You may call me Hyde or RC.)
(If you'd like to role play, if you'd like a book, yes a whole book, or a oneshot dedicated to you, or anonymous, please tell me in my PMs or conversations.)
(I know most fandoms so feel free to make it anything/specific.)