The following steps should allow the reader to draw an imperfect pint of beer using Adobe Illustrator.
Step 1: Step 1
Using the Ellipse tool, draw an Oval.
Step 2: Step 2
Draw a second oval about half diameter of the first. Place the second oval the distance of one vertical pint glass below the first oval.
Step 3: Step 3
Using the line segment tool, connect the ovals to form the sides of a pint glass.
Step 4: Step 4
Draw a third oval below the first and at an appropriate distance.
Step 5: Step 5
Select and copy the small oval at the bottom of the glass. Place this copy just below the copied oval so that they overlap.
Step 6: Step 6
Using the line segment tool, connect the two smaller ovals.
Step 7: Step 7
Using the direct selection tool, select and delete the two top segments of the bottom oval.
Step 8: Step 8
Using the direct selection tool, select and delete the two top segments of the second oval from the top of the glass.
Step 9: Step 9
Using the selection tool, select all parts of the glass.
Step 10: Step 10
With all segments of the glass still selected, use the "Live Paint Bucket" tool to apply beer-like colors to parts of the pint glass.
Step 11: Step 11
Add bubbles somehow.
Step 12: Not Real Beer
Accept that your drawing of beer is imperfect. The only perfect beer being the one that you hold in your hand.