Know how to say the following:
1. That was a great landing captain;
2. Can I buy you a beer captain?;
3. I will take the ugly one captain.
It is a shame you will miss out on the fun real flying can give .But it seems direct to the RHS of a mini jet is the way things are done these days .
.Learn as much about the aircraft you are flying as you can. When you fly with a good captain learn from them . The way they do something, the way they think, ask them questions on how they made the decision they made, observe the way they talk/communicate with crew and company, the way they lead. When you fly with the not so good captain (and you will), use the phrase "OIC" when they try and teach you garbage, and think back to what the good captain taught you .
Try and refrain from starting an instagram persona being a gym/monk/ginger etc pilot . Do the job because you enjoy it, not to try and make people think you are less insecure than what we probably are . Have real friends not followers .
Be truthful when you don't know something . No-one knows everything, if asked something you don't know, admit it and ask questions to learn . Be truthful to yourself when you have a bad day at work: thump the landing in, give whip lash to crew and pax when using the brakes, make a cluster of a PA or radio call. Reflect on it trying to improve .
Don't become a FMC junky .be able to work out your own descent profile rather using speed brakes to keep the vert deviation at 0 . Know how much fuel your aeroplane burns in the cruise and in the hold and use the FMC to back up your calculations. Know how much fuel your flight plan will have you landing with. By this I mean in Kilos or pounds, rather than saying I have 20 min extra. By knowing this you can pick a fuel problem earlier, and before you get the EICAS or ECAM .and make a better decision on how much fuel will be required.
But most all, try your best, and enjoy your flying .