# Invocation To invoke an instance method you first need an instance of the class. You then write `.` followed by the name of the instance method and a list of arguments.[^elmo] ```java class Elmo { void talkAboutRocko() { IO.println("ROCKO'S NOT ALIVE!!") } } void main() { Elmo elmo = new Elmo(); elmo.talkAboutRocko(); } ``` [^elmo]: Daily reminder that Elmo absolutely [hates Rocko](https://www.youtube.com/watch?v=DFBMcwaSdns)