The L ranks among the easiest letters in the manual alphabet, because its handshape reproduces the written letter directly. So how do you sign the letter L in ASL?
Extend your index finger straight up and your thumb out to the side, forming a right angle. The other fingers stay closed and the palm faces out. No movement.
Your hand draws an L exactly as you would write it, which makes this one of the most readable letters in the alphabet. Even at a distance and in a fast sequence, its silhouette registers immediately.
The single point to watch is the angle. Keep it clearly open at ninety degrees, since a thumb drifting in toward the index stops looking like an L. That tightening happens naturally as your hand relaxes mid-sequence, which is where the error creeps in.
One detail worth knowing: this handshape appears in many ASL signs beyond the alphabet, which makes it particularly worth mastering early. You will practice it naturally as you build vocabulary.
You will fingerspell it constantly, in names like Liam or Lily, and places like Los Angeles or Louisiana.
In this article we cover everything about the letter L in ASL.
How to Form the Letter L Correctly in ASL?
Here are the steps to form the letter L properly.
Raise your dominant hand to chest height
Fold your middle, ring and little fingers against your palm
Extend your index finger straight up
Extend your thumb out to the side
Open a clear right angle between the two
Face your palm toward the person you are signing to
The decisive point is the ninety-degree angle. It must be sharp and clearly visible, since it alone gives the letter its recognizable shape.
Extend both digits fully along their length. A partially extended thumb or index narrows the angle and weakens the silhouette.
Keep your three folded fingers firm against your palm, since one drifting up changes the shape your conversation partner reads.
Hold the hand upright and steady, as tilting alters how the angle is perceived.
What Mistakes Should You Avoid With the Letter L?
Three errors recur among beginners.
Closing the angle as the hand relaxes mid-sequence, which gradually erases the shape that makes the letter readable
Partially extending the thumb or index, which narrows the angle and weakens the silhouette at a distance
Letting a folded finger escape, which changes the shape your conversation partner reads
Among these, the closing angle is by far the most common. It rarely happens deliberately. Your hand simply loosens between letters when fingerspelling at pace, and the thumb drifts in toward the index without you noticing.
The fix is straightforward: keep the thumb pushed out rather than letting it rest. A deliberately wide angle survives the natural tightening that comes with speed.
Check your rendering by filming yourself once. The L is readable enough that this is rarely a problem, but confirming the angle holds in a real sequence is worth the thirty seconds.
How to Memorize the Letter L Easily?
The L requires almost no memorization effort, because your hand draws the written letter directly. Picture an L on a page and your fingers find the position naturally.
That makes it one of the iconic letters of the manual alphabet, alongside the C and the O. These handshapes anchor themselves without any mnemonic device and are typically the first beginners master.
The only thing worth training is the angle, not the shape. Practice holding a deliberately wide ninety degrees, since your thumb naturally drifts in as your hand relaxes during a sequence.
Pair it with the G to lock in the distinction. Both use a raised index with three folded fingers, and only the thumb position changes: at a right angle for the L, parallel for the G.
Running them back to back gives you two letters for the effort of one.
