This is just a statement. Were it a command, the verb would need to be in the imperative mood.
If you're commanding a single person, sinä, the imperative is the verb form which is used after negation. So 'Puhu japania!': "Speak Japanese!" and 'Laula hiljaa': "Sing quietly!"
If you're commanding multiple people, te, then you take the 3rd person plural form of the verb, like puhuvat, and replace the -vat ending with -kaa. So 'Puhukaa japania!' and 'Laulakaa hiljaa!'