The caster chooses a language she knows as she casts the spell. The subjects of the spell, when speaking in that language, appear to speak in gibberish that strongly resembles a foreign language.
The caster can touch himself as a free action, can touch one friend as a standard action or up to six friends as a full-round action.
The subjects of the spell automatically make will disbelief checks, so they are always able to understand each other. Unwilling targets can make will saves or check SR to negate. People listening for more than a minute may make will disbelief checks if they suspect something. A person who spent a rank in Linguistics in order to read lips can make a DC 25 Perception check to read the lips of the conversants.
Material component: One chopped-up animal tongue for every creature affected.