How do you say "Me Too" in Spanish?

Answer 1

Puedes decir “Yo también,” y “Igualmente.”

Answer 2

It would really depend on the context.

In Spanish sometimes there are phrases where something is pleasing TO someone (a mí me gusta).

so the response to that phrase would be "to me too" or (a mí también)

In other contexts (eg. voy a la tienda) would be "I'm going to the store." "Me too."

In this situation it would be (Yo también)