It is easy to RP a Xeno. Imagine you come from a poor neighbourhood surrounded by people who flaut their wealth in your face, who are corrupt and oppressive or who pick on you just because you dont have their background or because you are an easy kill. We are the Dalits, "the untouchables". Those who in everyday life do the jobs others think beneath them. The Xenos you see are the freedom fighter wing of a caste of people who exist throughout Liberty. Beware when you are getting a refit... it is probably a Xeno sympathieser putting your ship back together.