  Linguistic markers of personality traits have been studied extensively, but
few cross-cultural studies exist. In this paper, we evaluate how native
speakers of American English and Arabic perceive personality traits and
naturalness of English utterances that vary along the dimensions of verbosity,
hedging, lexical and syntactic alignment, and formality. The utterances are the
turns within dialogue fragments that are presented as text transcripts to the
workers of Amazon's Mechanical Turk. The results of the study suggest that all
four dimensions can be used as linguistic markers of all personality traits by
both language communities. A further comparative analysis shows cross-cultural
differences for some combinations of measures of personality traits and
naturalness, the dimensions of linguistic variability and dialogue acts.
