As gas fees are here to stay on the Ethereum blockchain, Curve governance is now using a tool called Snapshot to allow governance users to signal their preferences on Curve proposals.
Whilst this tool doesn't replace governance and will only be used to signal, it's a great way for holders of all sizes to make their voices heard as voting is completely free.
Head over to the signalling tool: https://signal.curve.fi/#/curve and connect your Metamask wallet. It should be the one where you hold your veCRV (vote locked CRV).
Simply review your proposal, select your preferred option and click Vote:
You will be prompted by Metamask to sign a transaction which is completely free and your voting vote will be counted according to your voting weight at the moment of the proposal creation.