An engagement party is a celebration of the couple's upcoming marriage. They are usually thrown to help family and friends of the couple get to know each other better before the wedding. They can be formal as well as casual affairs. The decorations of these kinds of parties are very important. Recent years have seen many different themes becoming more popular.
Banners and Balloons
Keep the welcoming center in the hallway. Put up banners and balloons of the couple's favorite colors. Have some champagne as the welcome drink. Inside the venue hall, you can put up banners with the couple's names. You can also put up slogans that are associated with them. Make sure that the banners and slogans are big enough to be legible even from a distance.
You can go with a complete romantic theme. Keep the color code as white, red, and golden. Have heart shaped balloons everywhere. You can put up photographs of the couple all over the place as well. Another theme that you can go for is the tropical theme. You can have bamboo and trees in the hall. Take it a step further by serving the drinks in coconut shells. You can also go for the old school theme. You can have antique lamps and statues. Clear the central area of the venue for dancing and keep a dim sepia light in the room.
You can have a haute couture party. Play lively music. Keep a section for dancing, and set round tables with chairs around the dance area. You can also arrange a ramp for the couple to make a dramatic entrance. Keep the venue slightly dark.
If the couple is into sports, then you can have a sport theme. If they like basketball, you can have an NBA theme. Have hoops all over the place, and let there be ample basketballs for people to shoot hoops with. You can have a contest for shooting the most hoops in 5 minutes, or something along those lines.
Frat Party Theme
Since this is not as formal as a wedding, you can have a typical frat party. You can have a party with all the confetti, streamers, balloons, beer, and the jazz. Let the party be casual and call only special friends of the couple's. You can also hire a band or a DJ to handle the music. Have a bar section separate. You have a self-service bar, or you can hire a bartender for the occasion.