I believe his away nickname is RusselB-afk

Code:
//echo -a $right(ResselB-afk,4)


I think regex works decently well in this case for matching purposes. I have addressed the ! and . punctuation so that people can call hi RusselB! or hi, RusselB. or Hi russellb or without any. The nickname being called is not case sensitive because of /i modifier.

And it will not trigger when someone calls out in this fashion: hi russelb <followed by words>

Code:
on $*:TEXT:$(/^(hello|hey|hi|hello,|hey,|hi,)\s( $+ $me $+ )(!|.|)$/Si):#: {
  if ($regex($1-,$regml(2))) { if ($right($me,4) != -afk) { describe # Hello $nick $+ , hows it going ? :) }
    else { describe # Sorry $nick $+ , but I'm not able to have a conversation with you at this time :) }
  }
}