For ceramic resonators, the datasheet’s specified 4 pF load capacitance is the effective value seen by the resonator. In practice, you need to account for board stray capacitance (typically 1–3 pF) plus any input capacitance of the oscillator circuit. That means the actual external capacitor values can be slightly higher than 4 pF. A common and practical approach is to use two capacitors (one on each side of the resonator) in the range of 4.7 pF. This choice typically provides an effective load close to 4 pF when you factor in PCB parasitics.

In summary:

You may fine-tune these values if you have a good estimate of your PCB stray capacitance, but 4.7 pF is a standard, widely used value in similar designs.

There appears to be some confusion—let me clarify:

For your design following the datasheet recommendation, 4.7 pF capacitors on each side are usually a good option when accounting for stray capacitance.