Depending on the nationality, they could also be some of the most complicated and high maintenance women you'll ever meet.
From my experience, Lebanese love to flirt and are usually materialistic (but they are also some of the hotest chics I have ever seen in my life). Iranian women are quite hot too, but can be really high maintenance, they love to gossip, and some are really into playing mind games. Syrians are the least worrisome of the region.
These chics aren't reserved, you just have to play them the right way.