The seven days following the wedding are celebrated with a meal each night with the bride and groom and their close friends and family. Also looked at as one of the peak embarassing moments of Judaism because everyone is staring, wondering how themarital relations went. It is also a good prevention from violating the Niddah rules because technically she should be one at this time.
At the end of the seven days, the couple's cheeks hurt like crazy from having pasted that ridiculous smile on their faces the whole week. They also immediately qualify as "kvater material" for all married friends making brisim.