I am not a Jew but I casually read about your religion, interested by the complexity of the rules, the way they evolved historically and their impact on the social interactions.
This is partly driven by discussions with (Jewish) friends on how colorful your religious life is (and - to be completely frank - how complicated this seems to be for an outsider given the complexity and volume of the rules I mentioned earlier), and a Jewish radio station I often listen to when driving or biking from work (which recently addressed a point such as "can a Jew have a coffee at the bar on the corner of the street" - I am in France and was mesmerized by the depth of the analysis which took 30 or 45 minutes).
A recent question (Source for choosing your meal guests wisely) triggered a question that I had in mind for quite a long time already: are there social interactions (such as meals, festivities, ...) that are closed for non-believers?1
My curiosity comes from the fact that since I grew up in a loosely Catholic environment in France I know that this is not something that exists in Catholicism (all religious activities are open to the wide (believer or not) public, there are no home events that would be limited to Catholics, etc.) but they also have zero rules (comparatively) when it comes to influence of religion on everyday life (the (now lifted but still present) ban of meat on Friday is the one that comes to mind).
1 What about purely religious ones (such as religious public activities in a Synagogue for instance)?