EagerLoading.cs

public class Person{
    public String Name{get; set;}
    public String Email {get; set;}
    public virtual Employer employer {get; set;}
}

public List<Person> GetPerson(){
    using(DbEntities db = new DbEntities()){
       return db.Person.ToList();
    }
} 

/*
Now after this method is called, you cannot lazy load the Employer entity anymore. 
Why? because the db object is disposed. So you have to do Person.Include(x=> x.employer) to force that to be loaded - And that's how you perform EAGER loading. 
*/