First of all, make sure the 3D axis is centered, in (4) XZ work plane and viewing down the +Y (front) axis, if not press the F key or View menu -> Change view port -> Front.
Draw
First, we start by drawing 2D guide lines, these make modeling easier and quicker because they are fast to draw and organize.
The modeling tools use these lines and vertices to attach to and create the model from them intuitively.
There are two ways to draw outlines.
1. Use Polyline Polyline(5) and draw steadily and slowly.
Each left mouse click draws a single line from the previously clicked point.
When you want to stop drawing a line segment, run Mode cancel(Esc).
2. Draw at once in Freehand line Freehand polyline mode. If you are a tablet user, this is the one for you, and you can draw very quickly.
If you hold down the left mouse button and drag, a line segment is drawn along the path that the mouse pointer is moved, the slower the mouse is moved, the more points or detail the outline will be.
When you want to stop Freehand line drawing, hit Mode cancel(Esc).
You can fine tune each vertex position with the Move(1) tool in the following ways:
1. Select Move(1) mode with tool button
2. Or hit Mode cancel(Esc) several times to enter Move(1) mode
Method 2 is recommended because you only need to press (Esc) to exit any operation/tool.
By default, when a vertex, line, face or multiple of these are selected, the default action is to move when click (and hold) on them and moving the mouse, so option 1 isn't recommended.
Again, use undo (Ctr-Z) to undo any wrong movement of the ear.