Half avocados and throw into a large bowl. Half limes, squeeze the lime juice over the avocados. Dice up the tomatoes into 1/2″ pieces and throw into the bowl. Dice up the onion into 1/2″ pieces and throw into bowl. Dice up the garlic as tiny as possible and throw in. Remove the stems from the cilantro so you just have the leaves. Chop up the leaves and throw in. Mix it all up and then salt and pepper to taste!