Lots of good advice above. To put it short, enjoy it, take good care of it and it will take good care of you.

But to be a bit more specific:
- Drive it properly and give it a good Italian tuneup every now and then. Good both for the car and you.

- Apply mechanical sympathy. When the water temp gauge has reached its normal level the engine isn't warm enough. Rule of thumb is to drive the car for 12-15 minutes before really opening it up.
- Only use good high octane fuel. On top of that a bottle of injector cleaner like BG44K once a year or so is good.
- Be aware of the length of the front of the car. It's probably longer up front than you're used to from other cars so be careful if you're parking with the front towards a kerb where the front parking sensors may not catch it and you can hit the front spoiler if not careful.
- Part of taking good care of it is to garage it if you can, although I realise that's often not possible in the UK.
- If you intend to leave it outdoors in rain or wash it - make sure to have the engine cover on and modify the engine cover by adding something on the sides that directs water away from the engine block. Especially useful if you have the open mesh vents which I believe you have.
- In hot dry summer weather, better keep the engine cover off.
- Consider blocking the symposer. It's a tiny completely reversable modification which takes a few minutes and improves the in cabin sound by removing unnecessary engine drone.
- Presuming that you have the LED lights, as long as you have a warranty, keep a close eye on the left hand side DRL which seems to fail more or less sooner or later in all facelift cars.
- Check the rubber along the side edges of the boot opening which tend to become loose over time and cause some odd in cabin noise at higher speeds.
- Get familiar with how to manually put the gearbox in neutral with the little strap in the centre cubby, to be ready in the unlikely event of needing to be towed. In connection to that, remove the cover that hides the strap and consider removing its clips to make it easier to remove if needed.