How to Light the Hanukkiyah?

Hanukkiyah (Hebrew: חנוכיה ), also known as Hanukkah Menorah,  is a nine-branched candelabrum lit during the eight-day holiday of Hanukkah.

On the first night of Hanukkah and on all other nights during the Holiday, the middle candle (called a shamash) is lit first. The shamash does not count as one of the Hanukkah candles but is used to light all the other candles.

Place a candle in the rightmost position on your Menorah. Now hold the shamash and recite the following blessings:

Baruch Atah Adonai Eloheinu Melech HaOlam, asher kidshanu b’mitzvotav v’tzivanu l’hadlik ner shel Hanukkah.

Blessed are You, O Lord Our God, Ruler of the Universe, Who has sanctified us with Your commandments and commanded us to kindle the lights of Hanukkah.
Baruch Atah Adonai Eloheinu Melech HaOlam, she’asah nisim l’avoteinu, b’yamim haheim bazman hazeh.

Blessed are You, O Lord our God, Ruler of the Universe, Who made miracles for our forefathers in those days at this time.

Baruch Atah Adonai Eloheinu Melech HaOlam, shehekheyanu, v’kiyamanu lazman hazeh.
Blessed are You, O Lord Our God, Ruler of the Universe, Who has kept us alive, sustained us and brought us to this season.

After these blessings are said the shamash is lit and the first Hanukkah candle is kindled using the flame from the shamash. Place the shamash in its place on your Menorah.

During all other nights of Hanukkah begin by placing your candles in your menorah from right to left. Not counting the shamash, the number of Hanukkah candles in your menorah should match the night of Hanukkah.

Light the shamash first, then kindle the remaining candles from left to right. This is the reverse order of how the candles were placed in your Hanukkiyah, so the last candle you put in the menorah should be lit first.
As you light the candles recite the following two blessings:

Baruch Atah Adonai Eloheinu Melech HaOlam, asher kidshanu b’mitzvotav v’tzivanu l’hadlik ner shel Hanukkah.

Blessed are You, O Lord Our God, Ruler of the Universe, Who has sanctified us with Your commandments and commanded us to kindle the lights of Hanukkah.
Baruch Atah Adonai Eloheinu Melech HaOlam, she’asah nisim l’avoteinu, b’yamim haheim bazman hazeh.

Blessed are You, O Lord our God, Ruler of the Universe, Who made miracles for our forefathers in those days at this time.

After the candles are lit place the shamash in its place on your Menorah.

Credit:
judaism.about.com