8 deviants said Paragraph style with semi-descriptive or so language, somewhat large.
3 deviants said Shorter paragraphs, descriptive but not too elaborate.
3 deviants said Any of them/depends on the RP and who it's with! :]
2 deviants said I don't RP, dood. |:
1 deviant said IM/script-style (ie, 'Jenny: ...... *twiddles fingers*' and so forth)
No deviants said RPG-style, like Dungeons and Dragons or similar.