Phrasal verbs built on "talk" — same verb, but the particle changes the meaning. Pick the one that fits.
to speak to someone as if they are less intelligent
To speak to someone in a way that makes them feel less intelligent or important, as if you think you are better than them.
I don't like it when people talk down to me just because I'm younger.
persuade someone to do something
to convince someone to do something, especially when they are unsure or unwilling at first.
My friends talked me into joining the gym, even though I was nervous at first.
persuade not to do
to persuade someone not to do something, especially something unwise or risky.
Her friends managed to talk her out of quitting her job.
discuss carefully
to discuss something in detail, especially to make a decision or solve a problem.
Before making a final decision, we should talk it over together.