1. To throw a big party
This may seem too hackneyed but, in fact, you need to have a memorable experience with your group-mates and university friends. Make a big party with interesting contests and lots of pictures. The best option will be to make the party by the pool with cocktails and funny videos or a comedy movie. Several years ahead you will definitely look through the photos and recollect all the best emotions you had during your university years. A party is also a great opportunity to have bonding among your peers and to find really good friends that can become your besties for the rest of you life!