Na'vi Names and a new word

[Ashen Key]

Hey guys! I've been poking around this place for a little while, but this would be my first actual post-post. I have two questions, both related to a fanfic I'm toying with.

I.

I am very, very bad with languages, so I was wondering if anyone would be able to help me work out what the Na'vi for 'shelter-seeker' or 'one who seeks shelter' would be. I understand that shelter is hawnu and seek is fwew, but I'm not sure how to stick them together.

II.

Na'vi names. I have an awful lot of ideas in my head for fanfic, and I keep running into the issue of naming the Na'vi characters. Does anyone know how Na'vi names are actually formed? Any way of denoting a feminine name from a masculine, any rules, or...anything?

Any help with either of these would be utterly lovely, and very much appreciated