What someone would say to insinuate that it was their style, or that it was the way they usually do things.

When someone goes to the gym and spends 90% of the time on their phones scrolling through social media

Your style. The way you act. Your actions.

That is how I like to do things.

Whenever you give a reason to an answer.

A phrase used to defer responsibility, akin to "it is what it is". Usually used when someone's behavior is questioned, or when someone wants to brag about something they are subconciously not proud of.

popularized by Jack Black in his "Anchorman" cameo after he punts Baxter off the bridge.
it means "that's how I do things, if you don't like it, too bad. I am an independent person and I scoff at your preconceived notions of society."