I run them more or less in the 3.5 style, where they are disorganized and aggressive by nature, and prone to cruelty and treachery by nurture. Traditionally, however, they do engage in trade with humans-- something the other races look down on humanity for-- and are willing to work for humans they perceive as strong and generous, and can be encountered peacefully in their own lands and within human lands.
Not always, of course, but if you talk loud and wear your weapons outside your belt, they're more likely to want to talk first.