Here is an example, of course you will have to change the style, that it displays, to fit your taste.
Code:
amsg {
  var %i = 1
  while (%i <= $chan(0)) {
    var %c = $chan(%i)
    if ($me ison %c) {
      echo %c < $+ $left($nick(%c,$me).pnick,1) $+ $me $+ > $1-
      .msg %c $1-
    }
    inc %i
  }
}