There are several opinions about the proper way to apply thermal paste. This is because each setup demands its own application. It would be a good thing here to inform yourself about this diatribe and make your own choices. This is an old guide that explains this matter clearly. The following operation is the mere way I did. Now, when rendering with Keyshot, my laptop reaches 89°C instead of 95°C.

Take the thermal paste syringe and remove the cap. Place it over the GPU and lightly press the piston down at a distance of 1 cm from the surface trying to lay down a sphere of thermal compound not bigger than 2 millimeters of diameter!

Once you have pressed the syringe for the first time the thermal compound would probably leak from it continuously. Therefore, when you are moving the syringe over the laptop hold always a piece of paper under it so that you can prevent any possible leakage over the motherboard.

Repeat the operation on the CPU depositing a vertical narrow line instead of a sphere. Then, if you are not satisfied with the first application, you can clean the surfaces again with ArctiClean and repeat the application as many times as you wish.

As you can see I haven't been very good at laying down the compound and I had to remove the excesses of thermal paste using a small plastic spoon (the one which comes with the GC-Extreme syringe). Nevertheless it still looks plenty of thermal compound in the picture. This is not the reality. Deposit only a small amount of compound!