The idiom talk the talk means to speak confidently about something. It is used when someone says the right things but may not prove it with actions.
The expression comes from the longer phrase talk the talk, walk the walk, which contrasts speaking about something with actually doing it.
The expression comes from the longer phrase talk the talk, walk the walk, which contrasts speaking about something with actually doing it.
He can talk the talk about leadership, but people are still waiting to see if he can deliver results.