Concealed is when you hide something and revealed is when you reveal or show something
It can be the beginning of "starting to think to know what the other person thinks". When people know each other for a long time, they often think they know what the other person thinks or knows. This leads to the idea that if they can complete the sentence of another person in certain cases, they will be able to do so in all cases. This is however not necessarily true.
Answer: less than four
Explanation: because you do not want to get fat
It is partly genetically determined but lifestyle choices such as diet, exercise, weight, and smoking play a role as well.