On *:TEXT:!emotest*:#: {
  .timer 1 1 msg $chan How Emo is $2 $+ ? Cutting.....
  .timer 1 3 msg $chan $2- is $r(0,100) $+ % Emo (///_o)
}

Create a .txt file, paste the above code in it, all four lines. Save the .txt file with whatever name you want, change .txt to .mrc at the end. Save the script file inside the mIRC directory, or create a scripts folder inside the mIRC directory and save the script there (easier to keep track of). To load the script, in the client click Tools>Scripts Editor>Remote tab, then click File>Load, and pick the script file you created.

To edit the script to say what you want, you can edit some of the text, but don't touch anything with a $ in front of it.
On the first line, you can edit "!emotest" but leave the * at the end unchanged.
On the second line, you can edit "How Emo is", "?", and "Cutting.....".
On the third line, you can edit "is" and "Emo (///_o)".

You can have multiple individual tests in a single script file, by putting a blank line between each test. Make sure each one has a different name, such as !punktest, and !wusstest, in the first line.