All three religions are monotheistic which means they believe in one god. They all believe in prophets. All believe in the afterlife, either hell or heaven depending on your deeds. All pray. All do some sort of fasting. All forbid the consumption of swine and alcohol.
<span>One should be careful about what is said to another person unless you have that type of relationship. I find that I can only freely discuss things with people I know and trust and consider very good friends.</span>