Step 2
Get four toothpicks and gently stick them in the sides of the avocado
around the center (pointed side of the avocado up.)
Step 3
Get
a clear glass of water and place the avocado in it round side in the
water. use the tooth picks to keep the top from being under water.

A young, two week old avocado sprout
Step 4
Set it in a well lit area such as a window and wait.
In a few weeks, your avocado will grow roots.
A few weeks later, it
will grow a small stem. When the stem appears, remove it from the water
and place it in a small pot root side down and cover it with potting
soil, leaving an inch or two of the top of the avocado showing.
Step 5
Let
your tree grow into a beautiful plant. Water it every few days, but
don't over water it. Your tree most likely will never fruit but it is
quite a beautiful plant.
Step 6
Alternatively,
you can transfer the plant into the soil and watch this grow into a
beautiful tree. The tree should bear fruit after 4-5 years after
planting into soil.
This method of propagation usually does not
come true to seed.