There can be confusion surrounding the terms Arab, Middle East and Muslim. The website TeachMideast offers extensive helpful information on all things Arab.
http://teachmideast.org/articles/arab-middle-eastern-and-muslim-whats-the-difference/
Traditions and customs in Arab countries vary widely from those in Western countries. A brief overview of Arabic customs to be aware of when traveling is found on this website:
The website Arabic Online provides a short, concise overview of the religions found in Arab countries.
https://arabiconline.eu/religions-in-the-arab-countries-a-short-overviewview/