Bloke on right is thinking "why does the test pilot always stand there with the end of the 500gal drop tank up his ar*e".
Going back to the original picture the guy is saying "once you end up working for a proper airline some bod from the handling agent comes and plugs this in".
For the chinook one i think the penguin is saying "dont know why you are all staring at them when there is a naked one just inside the doorway....."