During the Holiday season, a man may be invited or will go to several Holiday parties in the span of a few weeks. It is true that a man will have less items to worry about than a woman with his wardrobe to get ready, but the emphasis becomes more important for a man than a woman to choose wardrobe pieces that make the man feel comfortable and look his best because his chances are less to look presentable. For instance:
A man should definitely shower and groom himself--Even if a man knows the host of the party (best friend, brother) the party will be filled with people he may not know very well so the first thing they will see is his visual silhouette (lines of his body, overall outline). A man shouldn't take for granted the type of dress so he should make a shirt and pants look crisp and clean to others.
Manners are important, even if they seem a burden--After people see a man's visual silhouette, a man must be aware of the occassion (work party, friend of a friend's social party) and use the proper manners. He should know which side his water glass is on (liquids to the right, solids to the left) and which forks and knives to use (start from the outside and work your way inward). If being served dinner, help the waiters by putting your fork and knife on the plate when you are done eating so they know they could pick up the plate.
Alcohol is great but not in front of all people--If alcohol is being served at a holiday party, a man should drink a minimal amount and wait until afterwards to head to a comfortable bar or his house to continue drinking more. Most times, a man will not know every person at the holiday party so he won't know every person's tolerance to drinking or drinking habits. To keep the yuletide spirit up, a man should stay with one drink and either wait for the host to give the green light to drink more or invite several people/friends to a local bar to continue drinking.