The Celebration
The celebration is common when people have something to celebrate. In case one has its birthday or a special date than he or she will make the celebration of that day. And there is no way for you to visit one's celebration without a present. Well, no one will kill you but it is wrong and you will feel embarrassed anyway, in other words it is just wrong.
The present you will make for a people who have organized the celebration depends on the kind of celebration they have and on the kind of relationships you have with these people. Say, if they are your friends and they have their housewarming party you can take any present with you. You will have no troubles with the present especially in case you friends are of good sense of humor.
Though, there is no way for you to bring anything you want with in case they have the celebration of their special wedding date. They may get offended with some present you recognize as a good and funny one. Care about the kind of celebration and the kind of relationships you have between you and people you are going to visit.
Once you have come there you have to put your present right where all other presents are. And you should never forget about a card in order they know who the one is who brought them such an interesting present. Never forget about a card.