Before the wedding

• Arranges the stag party.
• Select a gift for the groom
• Arranges fitting sessions for ushers and groomsmen
• Act as a liaison for the groom’s friends and family
• He attends the rehearsal and rehearsal dinner.
• Picks up the groom's formal wear prior to the wedding.
• Confirm honeymoon travel arrangements.
• Provide transportation for the groom to get to the ceremony and from the ceremony to the reception.

The morning of the wedding

• Help the groom dress and finish packing
• Insure that the car is packed for the honeymoon.
• Has the wedding rings
• Gathers all the travel tickets, passport, money/ travelers checks ID etc. together
• Finishes final touches to his speeches
• Any gifts or acknowledgments
• Checkbook or credit card for any needed payments

Ensure that the groom:

• Trouser zip is done up
• Face and hair are groomed
• If vows are written, that they are on him
• Fear and second thoughts are calmed and put to rest
• Uses the toilet
• Shoes are tied

At the wedding

• Transport the groom to the ceremony location.
• Oversees ushers at the wedding.
  Carry an extra copy of the ceremony seating plan in case the ushers need to refer to it.
• Ensure the officiant's fee is delivered after the ceremony or at the rehearsal.
• Sign the marriage certificate as a legal witness.
• During the processional either stand at the front with the groom or proceed ahead of the groom. Walks with the maid of honor in the recessional.
• The best man is responsible for safe keeping of the bride's wedding ring until it is time for blessing and exchange of the rings.
• He helps to organize groomsmen for formal photographs.

At the reception

• Sorts out the DJ or musicians
  The best man is seated at the head table or a table of honor.
• Dances with the bride and her attendants.
• The best man is in charge of toasting during the reception. Reads out cards and special mail for the bride and groom
• He makes sure that the groom has all tickets, hotel information, traveler's checks, itinerary etc. for the honeymoon.
• Takes any clothes or other items that have been rented back to the hire shop. Gets suits cleaned and returned to the groom`s home.

Expenses

• The best man pays for his own formal wear and accessories.
• If travel expenses are involved, he pays his own way, to the wedding, as well as hotel costs if necessary.
• Gift for the bride and groom
• Pay or help to pay for the stag party
  

Groom`s emergency kit

• Aspirin
• Comb or hair brush
• handkerchiefs
• Hair gel
• Extra toothbrush & toothpaste
• Deodorant
• Mouthwash