1. An apparatus for a wearable computing device comprising: a projector to project an image; a sensor to generate output; and a projection coordinator operably coupled to the projector and the sensor, the projection coordinator to: determine a visual field based at least in part on the sensor output; generate a projector control directive based in part on life-logging information including a history of an object based in part on the sensor output, the projector control directive to cause the projector to project the image onto a surface in the visual field, the image to include an indicator highlighting the object within a field of view; and generate a control directive to cause the projector to project a direction image to retrace a course recorded in the life-logging information.