you can tell if your avocados are ripe by touching them to see if they feel a bit squishy or peeling off the stem to see if it's green. next, cut the avo in half around the pit & scoop out the middle.
with your avocados in a bowl, a masher would be ideal, but we don't have one and use forks to cut/divide the avocado.
next, cut the onion, tomato, garlic, and serranos to mix in the avocados. my Tia taught me to cut a Serrano by making a cross cut at the tip, than slicing it - making four smaller pieces.
put onion, tomato, serranos, and garlic into avocado bowl and mix.
roll your lime to loosen the membrane thus creating more juice - slice. put one in your corona, and squeeze half into the guacamole.
mince the leaves of the cilantro and add to avocado mixture.
helpful hint: lime helps to preserve the guacamole, so add some lime garnish to increase your guacamoles life!