Points From Food
Get all of the guests seated and eating at the same time. This will allow a food chain, which results in happy guests and a large number of points. Bring appetizers quickly to guests just seated while waiting to bring entrees to those who were seated and already finished the appetizers.
Unpopular Guests
There are two unpopular characters in the game. Depending on the version, it is either Mei Ling and Aunt Bea or Betty and Uncle Ernie. Seat these two at the end of the tables to prevent problems with other guests and losing points. This will minimize other guests required to sit next to them.
Ignoring Requests
Guests at the wedding will sometimes request the impossible, such as sitting in a location where there is another guest already seated who is unlikely to get up. When guests make these requests, put them back in their original seated location instead. Points are not taken off for ignoring requests that are impossible.
Upgrades
Upgrades are an important part of gaining points and getting high scores. Always get the upgrades that provide extra points before other upgrades. This will improve scores and add extra points much faster, which results in faster leveling.