County Executive Rob Astorino returned to his alma mater Friday to take part in the “Everybody is a Reader Day.” One of 25 guest readers at the Lincoln-Titus Elementary School in Shrub Oak, he joined a policeman, superintendent of schools, retired teachers, accountant, nurse and local councilman for the day’s event. Astorino attended Lincoln -Titus in the mid-1970’s until he was in the fourth grade.