Lying verticies on surface

Support Modeling
1

Hi, i was watching this video https://www.youtube.com/watch?v=0654GCPxDhw#t=1475 and at the time (when the link starts) he created a plane and extruded it, but later you can see that its not extruded in one direction but like curves around the object behind it… Can please anyone tell me how he did that?

Many thanks^

2

Face snapping is enabled (magnet icon on the 3d view header) https://www.blender.org/manual/3d_interaction/transform_control/snap_to_mesh.html#snapping-modes

3

Yeah, thats it. Thank you very much:)