A silver necklace is always good
They don't. Jews believe that Jews should celebrate Hanukkah.
You shouldn't press anyone to celebrate unfamiliar holidays. But if you can celebrate Hanukkah in their presence, and maybe teach them about the history and reasons behind it.
Yes, but he should remember to include a Hanukkah card with the gift.
There are no particular clothing requirements for Hanukkah in Jewish law. Whatever is acceptable for the rest of the year is good for Hanukkah too. Hanukkah is not one of the major Jewish festivals.
חנוכה שמחSee also: More about Hanukkah
Yes, many synagogues and schools hold Hanukkah parties. The venues and times may change from year to year and should be checked.
It is called a Hanukiah or a Hanukkah menorah.
There are no rules or traditions about gift giving on Hanukkah. This is a new, non-traditional practice (only a few decades old) that was borrowed from Christmas.The only traditional gift during Hanukkah is the gelt (coins) given to children.
Hanukkah is the name of Hanukkah. In Hebrew it is spelled חֲנֻכָּה
Jewelry, it's pretty and romantic.
Hanukkah is a holiday, not a person.
Electric menorahs are considered decoration and can be lit with any number of candles at any given time; unless this is your main menorah, in which case it should be lit during Hanukkah, with the blessings, at or after sundown.