The sign you're referring to, "Note by verbal indication" (1012-37), indicates that drivers must pay attention to information or instructions that may be communicated verbally, such as via a traffic officer or a roadside announcement. This sign usually indicates a situation where there may not be a standard traffic sign present, and instead, verbal directions will guide drivers on how to proceed.

In practice, this sign alerts you to the necessity of being attentive for instructions that could affect your driving, such as road closures or direction changes. If you encounter this sign, remain vigilant and ready to follow any verbal guidance from authorities.

If you have any further questions related to this sign or other traffic rules, feel free to ask!