Tongues

Gain the ability to speak and understand the
language of any intelligent creature, whether it is
a racial tongue or a regional dialect. The subject
can speak only one language at a time, although it
may be able to understand several languages.
Tongues does not enable the subject to speak with creatures who don’t speak. The subject can make itself understood as far as its voice carries. This
spell does not predispose any creature addressed
toward the subject in any way.