talk + to + noun
You need to talk to the manager.
talk + with + noun
He was talking with his friends.
talk + about + noun
Some people love to talk about the weather.
talk + about + -ing form
He has been talking about quitting his job.
talk + a topic
We do not talk politics here.
talk + a language
They started talking Spanish.
(=saying words in Spanish)
talk + in + a language
They started talking in Spanish.