Found some tips online for the groom for once :0 hehehe
Be there before the bride! Never, ever be late - and make sure your half of the wedding party are on time too, even the ring bearer. Camp out if you have to.
Even though it's bad luck to see the bride in her dress, don’t be ignorant of the colours she’s choosing for the rest of her wedding party. It would be a lovely touch if some of your accessories (cummerbunds, bow ties, kerchiefs, boutonnières) complimented hers. Black is a safe bet, but to coordinate shows thoughtfulness.
It’s the groom's responsibility to pay for the bride’s bouquet. However, at the end of the evening the tradition is for her to throw it to her guests to help them follow her up the aisle. A lovely touch might be to surprise her with another bouquet as your new wife at the honeymoon suite.
Consider an alternative to the tuxedo. Traditionally the morning suit was chosen for a daytime wedding, a tuxedo for an evening. For the modern marriage, a well-cut suit can be an alternative to the tux.
At the wedding breakfast – the first meal after the wedding (i.e. usually at the reception), if the wedding guests decide to toast the couple, it is NOT appropriate to join them in the toast – but rather you should acknowledge the toaster gratefully by looking at them and then thanking them after the toast. To join the toast would be to concur with the toaster and shows a lack of humility.
As the groom you will be required to make a speech. A few points to remember: Most importantly, compliment your new spouse and don’t be afraid to openly express you affection for her. Then similar praise is due the bridesmaids. Obviously you will thank your parents, the bride's parents and your groomsmen. And if you want to win a few points, make special mention of the bride's mother and how lovely she looks this evening….and don’t forget your own mother either.
Obviously “the mates†will be there and all eager to toast your new demise. Remember, this is your wedding night, not your stag, so watch your intake of alcohol. Drunk is not the condition in which to spend your first night of marital bliss.
If you are not leaving immediately on a honeymoon, organize in advance what you are going to do for your first night together and if it is to be a hotel, pick a nice one and enjoy using the room service.
Remember that you are now a couple and what you want is not necessarily the top priority, be thoughtful and attentive to your spouse’s needs.
Don’t forget to return the rented tux before you depart on your honeymoon as late charges can be exorbitant.