Look for the "Lunar S" - a feature that is comprised of the craters Kant, Kant E, and Mons Penck. It is located near the larger crater Cyrillus (see large lunar chart here), and occurs prior to first quarter phase. Use a small telescope at higher magnification, but don't use too much to avoid image breakdown.
The "S" shape is on it's side - see if you can spot it this evening, or perhaps in the months ahead.
(Hat tip to blobrana for this feature!)