Jeffrey sat, and as he often did, he browsed the holo-net. For example, Right now, as he was waiting in this piece of (s)crap ship, he had a military history book playing. It was about some old human conflict, about 400 years ago.
it was about two big nations going up against each-other because one of them killed a bunch of people because of it's religious beliefs. Being a former soldier of a former earth colony, he was well versed in such things.
His train of though was interrupted, by a group of people entering the ship bay. He quickly paused his audiobook with the correct sequence of blinks, and had His hard-suit's computer run a biometric scan of them. Within a few minutes, he had all of their names and recent histories. They had no apparent criminal past, no apparent military training, and little in the way of weapons.
If they do decide to come into this ship, they will likely decide to enter via the cargo bay. If they meant him harm, he could fire off his revolver. The loud sound combined with the enclosed space would most likely disorient them long enough for him to get in a position behind them.
He wouldn't be affected, because his hard-suit would block out the noise. If they didn't mean him harm... Crap he hadn't thought about that... And that's more likely too.
He would greet them, rifle at the ready, but not pointing at them. Helmet on, with the red glowing eyes for the extra intimidation power.
And then there's the possibility that they might not even come in here, in which case he will just go ahead and keep listening to his book.