At first, you should give attention to the cleanliness of your body on regular basis. Nails of your hands are very important part which should be filed and cleaned properly. Make sure you have checked and cleaned your nails especially on the wedding day.
If your skin is dry, then you should use a moisturiser on regular basis as it will not bring you any bad remark from your friends at wedding when you shake hands with them. Besides that, your hands should not look dry at all which will create an impression that you have not prepared for your wedding.
Having your haircut properly is one of the most important elements of preparation for a groom. You should have a haircut two or three days before your wedding which will give you a sober look while sitting besides your bride.
Making shave is the most important thing for a groom. If you have not paid attention to this aspect, then do it in the morning of your wedding day.
Do not get drunk on your wedding day as it can ruin your special day because a groom should remain decent in his wedding function. So, avoid drinking which will help you in talking to all attendants in the party in a decent manner.
Making a speech to all people who are present in your wedding is an important thing and as a groom you should be well prepared for that. Keep your speech to the point and thank to everyone for coming at your wedding.