I spray something like 409 on a soft lint free cloth and wipe it. It according to how much was spilled and what. Here's how to remove the top case to clean and see how far the liquid got into the unit: MacBook Core Duo Upper Case Replacement
We have a chance to guarantee our right to repair electronic
equipment—like smartphones, computers, and even farm equipment. This is a once-in-a-generation
chance to protect local repair jobs—the corner mom-and-pop repair shops that
keep getting squeezed out by manufacturers.
Join the cause and tell your state representative to support Right to Repair. Tell them you believe repair should be fair, affordable, and accessible. Stand up for your right to repair!