For basic 3D topology model movement, use your software’s translation tool (e.g., Blender’s Move Gizmo, Maya’s Translate Tool) to select and drag vertices, edges, or faces along axes or freely in the viewport.
This lets you tweak mesh details—like fixing an uneven edge or reshaping a curve—without altering the model’s overall form, which is key for learning how topology flows.
If you’re new, try Blender (free) with a simple cube: Right-click to select vertices, press “G” to move, and practice aligning them into a prism—this builds muscle memory for small topology adjustments.