Simple snippet that welcomes a user using botserv
This snippet can be edited for your needs, I chose not use $read(filename.txt) for ease of editing purposes.

Instructions:
Depending on any existing "on :JOIN:#:" events
Copy and Paste into your Remote Section as a new file in your Script Editor "Alt + R"
and or edit "on :JOIN:#:" to "on *:JOIN:#channelname:" accordingly.

on *:JOIN:#: {
  var %rand $r(1,11)
  if (%rand == 1) {
    .timer1 1 6 bs say $chan welcome $nick !
    .timer1 1 7 bs say $chan Time now is $time $+ , what's yours $nick ?
  }
  if (%rand == 2) { .timer1 1 5 bs say $chan oh yes it's $nick ! }
  if (%rand == 3) { .timer1 1 5 bs say $chan Please do have fun in $chan and stay as long as you like $nick }
  if (%rand == 4) { .timer1 1 4 bs say $chan wb $nick($chan,$rand(1,$nick($chan,0))) }
  if (%rand == 5) { .timer1 1 6 bs say $chan Fancy seeing you here $nick ! }
  if (%rand == 6) { .timer1 1 5 bs say $chan WOW it's $nick ! }
  if (%rand == 7) { .timer1 1 4 bs say $chan Hey $nick $+ , $nick($chan,$rand(1,$nick($chan,0))) was looking for you }
  if (%rand == 8) { .timer1 1 6 bs say $chan Welcome back $nick($chan,$rand(1,$nick($chan,0))) oops I mean $nick }
  if (%rand == 9) { .timer1 1 5 bs say $chan Welcome $nick ! }
  if (%rand == 10) { .timer1 1 6 bs say $chan Howzit $nick ? }
  if (%rand == 11) { .timer1 1 5 bs say $chan Hey $nick $+ , $nick($chan,$rand(1,$nick($chan,0))) was speaking behind your back }
}