Warning, most of the fun lies in the non-essential actions!

First things first:

X WINDOW
X PLANET

Oh well.

GO BATHROOM

Now the fun begins.

X MIRROR
X UNIFORM
X PIN

(Not essential, just a bit of background.)

OUT
X TABLE
X TERMINAL
X DATABANK
CONSULT DATABANK ABOUT RACES/TRIANGLE/WAR/CONFERENCE/AMBASSADOR

...and also about the particular races. Again, not essential.

OUT
THINK
ASK COMPUTER ABOUT CAPTAIN (twice)

The next part is completely optional:

AFT
PORT
ENTER
X BELT
TAKE IT
OUT

(end optional part)

FORE

And another optional part:

X CARGO DECK
FORE
X LIBRARY
X BOOKS
X REPLICATOR
X WINDOW
X TRANSPORT
ASK COMPUTER ABOUT TRANSPORT
ASK COMPUTER ABOUT SENSOR
COMPUTER, SCAN TRANSPORT
X PAD
TAKE IT
OUT

Ok, we're out of optional sections. From now on, Insert extra
E(X)AMINE commands at leisure...

UP
X LIGHT
X MESSAGE
PLAY MESSAGE

Hmmm...

LOOK
X BADGE
TAKE IT
X CODE

That sounds useful. Now off to real work...

DOWN
DOWN
ENTER AIRLOCK
X SUIT

Don't forget to examine its component parts.

WEAR SUIT
OPEN DOOR
X IT

No problem, it's not the only exit. Right? Right?!

OUT
FORE

That's more like it.

X PLATE
PRESS IT

Or not. Let's see...

X PANEL
OPEN IT
JUMP
CLIMB WALL

Grrr...

THINK

Remember what you've been told about the ship's computer?

ASK COMPUTER ABOUT GRAVITY
COMPUTER, TURN OFF GRAVITY
OPEN PANEL

Couldn't be that easy, now could it?

AFT
AFT
X DOOR

As it happens, we have just the thing.

TRANSFER CODE TO DOOR
AFT
X CONSOLE
X TOOLCASE
OPEN IT

Aha!

TAKE KEY
FORE
FORE
UNLOCK PANEL WITH KEY
OPEN PANEL

That explains it. Oh well, one more place to visit...

X TRANSPORTER
ENTER IT
X CONSOLE
THINK
LOOK UNDER IT

By now you know the drill.

X PANEL
UNLOCK IT WITH KEY
OPEN IT
TAKE CHIP
X SLOT

An now, to make a long story short:

TAKE RED
OUT
FORE
X PANEL
TAKE SMALL BLACKENED CHIP
PUT RED IN PANEL
LOOK
TOUCH PLATE
FORE

Remember what I said about examining the spacesuit's parts?

JUMP

That's it!