Spiritual leaders are called Rabbis. Jews worship in Synagogues.Almost all Jews feel a sense of connectedness to each other. The traditional explanation, and the one given in the Torah, is that the Jews are a nation It is studied in Religious Studies courses and taught to Jewish children in Hebrew schools. The most traditional Jews and the most liberal Jews and everyone in between would agree that these secular people are still Jews.When they think of Jewish culture, they think of the food, of the Yiddish language, of some limited holiday observances. When they think of Jewish culture, they think of the food, of the Yiddish language, of some limited holiday observances.
There are certainly cultural traits and behaviors that are shared by many Jews. They feel connected because of there strong history and religion