This is an extract i found about Cypriot weddings but i have heard that it is similar in Greece.

“The Bride and Groom sometimes arrive at the church together, but usually the groom waits outside the church, with the brides bouquet. In a village they will arrive on foot, but in a town it is likely they will arrive in a taxi and walk the last few yards.

“Parents of the bride give the bride away outside the church. The bride and groom walk up the aisle together and both sets of parents stand with the couple.

“The chief bridesmaid is called koumera, the best man, Koumbaros. The koumbaros, traditionally the groom’s godfather, is an honored guest who participates in the wedding ceremony. Today, the koumbaros is very often the best man, who assists in the crowning of the couple, and in the circling of the alter three times. To be sure of a “sweet life”, a Greek bride may carry a lump of sugar in her glove on wedding day.”

From: http://www.kypros-cyprus.com/weddings.html

There are many “Greek/Cypriot” traditions that are different to our “Greek-Australian” traditions. View more about this in the comments.