To make the perfect guacamole, you need to choose your avocados carefully. Do not use overripe avocados or those that are too green. Also, never leave any brown parts in the avocado. This won’t affect the flavor, but it will give your guacamole an unpleasant appearance. Avoid mashing your avocados too much, and do not use ingredients at different temperatures, as this can result in a strange texture. Try to avoid using too much lemon juice, and do not go overboard with seasoning, such as salt.