If using a salted rim, wet the edge of your glass with lime juice or water and roll it in sea salt, then set aside.

Cut limes in half and juice them to yield 1 ounce of fresh lime juice (about two medium limes).

Chop 1/2 cup of fresh fruit into small pieces, removing stems, seeds, or skins.

Place chopped fruit in the bottom of a cocktail shaker and muddle gently to release juices.

Add 2 ounces of tequila, 0.5 ounces of triple sec or Cointreau, 0.5 ounces of agave nectar, and the lime juice to the shaker.

Add 1 cup of fresh ice to the shaker, filling it three-quarters full.

Shake vigorously for 10 to 15 seconds until the shaker is frosty and cold.

Strain the mixture through a fine mesh strainer into the prepared glass, leaving pulp behind.

Garnish with a fresh fruit slice or wheel and serve immediately.