How to trigger voice lines?

I just unlocked and equipped a new Voice Line.

How to I trigger them? Is there a button for it?
Do heroes say their Voice Lines automatically after certain number of kills?


Solution 1:

When in game you can push "C" (default key binding) and it will bring up an overlay with different options. Simply click on the one that says voice line.

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Solution 2:

The "voice line" is an option available through the quick chat menu.

You can access the quick chat menu by pressing the C button, on computer, or by holding down on the d-pad, on console.