You can request data from the OSM server, similar to how you would in JOSM, but we recommend using the built-in download function in QGIS, which can be access by going to: Vector -> OpenStreetMap -> Download Data. For a step-by-step guide to importing OSM data and creating layers, see the section on QGIS on learnosm.org.
Kwa hatua kwa hatua elekeza kuingiza data za OSM na kutengeneza safu, see the section on QGIS on learnosm.org.