So ... 「...も同じく」
● You are a student. So am I.
● You like One Direction. So do I.
● I can speak Spanish. So can my sister.
● You went to the concert. So did we.
Neither ... 「...も同じく～ない」
● You can't eat sashimi. Neither can I.
● You don't like soccer. Neither do I.
● You're not a student. Neither am I.