Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to pronounce words clearly with a lisp [title] Smile. [step] Looking in the mirror, open your lips like you're smiling. When you begin saying the sounds, you'll want to keep your lips open like this to be able to see your teeth the whole time.

Ending1: [substeps] Let your teeth show clearly because this is how you'll sound in your italian. If your jaw is clenching and flexing, this will create a tense, tight lisp. Ending2: [title] Close your teeth and line them up. [step] Line up your teeth so that the bottom row rests just below the top row, touching them lightly. Ending3: You don't want to show up looking grim, frustrated, or mean. When you start pronouncing out all the words without a smile on your face, you'll come off as shy and unconfident, which will make your pronunciation less desirable. Ending4: Smiling is when you hold the shapes of the words in your mouth, allowing them to come out more clearly. You don't want your words to seem like pipe bombs or a string of words when you're swallowing.

Answer format: ending1/ending2/ending3/ending4