how to invoke a dynamic method

[MadarEd]

I am not sure if this is the forum to even ask the question

One can check if a method exists with
if ($pkg->can("$method")) ....

Question is How do I invoke it. I am looking to do
if ($pkg->can("$method")){
# I need the syntax to invoke the method
}

Thanks in advance for your help. I appreciate your help.

-Edwin 
[EMAIL PROTECTED]