How not to code Kotlin like a Java dev?

I’ve been writing Java for a long time (10+ years), I’ve done some Python and JS on the side but mostly drank the Java coolaid.

I want to pick up Kotlin, I saw another post where someone recommended Kotlin Koans to someone wanting to jump over and the response was that they would still code Kotlin like a Java Dev. I’ve seen similar comments about Java devs moving to other languages such as Golang.

What are the main things people refer to when they mention someone coding a new language like a Java Dev? Is it the fact that they don’t make use of syntactic sugar? Is it making use of classes to much? or some other way things are laid out?

What would be your recommended approach for me to fully embrace Kotlin and not code it “like a Java Dev”?

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