The Sims parties are really fun. Parties are a great way to make friends, boost your mood, and even fulfill a few of your goals. Read on to find out how to throw a great party.
Steps

Step 1. Press on the phone and select "Throw a party" or "Throw a party at …"
If you want to throw a party away from your home, then select "Throw a party at …" and choose the place where you want to host it. You may have to pay for exclusive access. This is especially good when you don't want anyone else to show up at a public event. Be sure to choose good spots! A community park, pool, or nightclub (for Sims 3 Late Night users) is a good location for a party.

Step 2. Invite your boyfriend / girlfriend, best friends and acquaintances
By inviting employees, you will help yourself with your work. The more people the better!

Step 3. Don't forget to serve food
You can either prepare it yourself in advance, or buy it at the buffet. Remember to pay 250 Simoleons to serve food from the buffet. On the plus side, the buffet serves very high quality food like fall salad, turkey and biscuits. If you want, you can buy a bar and prepare drinks, or hire a bartender to make them for you (for Sims 3 Late Night users).

Step 4. You can also ask your Sim from your family to play the instrument
When guests come, have him or her play something. Most Sims love it when music is playing nearby.
- If there is no one in your family who is familiar with music, then buy a stereo system. This will provide you with music that your guests can dance to and have fun!
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Have a Brilliant Party in Sims 3 Step 4

Step 5. Before hosting the party, you should make sure your Sim is rested and in a good mood
It is advisable to prepare a few hours in advance. You can't throw a good party if your Sim is tired at night.

Step 6. Communicate with guests as much as possible
The more you talk to them, the more fun they will be.
Method 1 of 1: Alternative method if you don't have the Late Night add-on

Step 1. Tap on the phone to invite as many people as possible
Use the Make My Sim Know Everyone cheat to invite a lot of people.

Step 2. Choose a theme for the party
Choose something cute or playful.

Step 3. Get ready for the arrival of guests
When they start coming, invite them all inside. Flirt shamelessly with every guy or girl you meet.

Step 4. Prepare a room for those who will not go home
To do this, you should know the limits of your Sim and others. Some are having fun all the time, while others will leave after the first song.

Step 5. When most of the guests have fallen asleep or left the party, turn off the music
You must do this if you don't want to wake them up and find everyone on the dance floor again.

Step 6. Take a shower or bath
A bathroom is desirable, as this will relax your Sim more.

Step 7. Eat if necessary
You may not need to, and if you eat something else, you might vomit.

Step 8. Go to sleep
This is very important if you don't want your Sim to die. Step 9. When you wake up, you will have to clean up all the damage.
Damage cleaning consists of the following:
- Kick everyone out, and I mean everyone. If they refuse, kick them out the door or kill them. Of course, it's better to kick them out, but you can kill them if you don't want to see them anymore.
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Have a Brilliant Party in Sims 3 Step 15 - Repair all broken furniture and appliances. To do this, you will have to spend a little money.
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Have a Brilliant Party in Sims 3 Step 15 - Clean up the house.
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Have a Brilliant Party in Sims 3 Step 15 - Clean yourself up. Take a bath, eat, read a book, sleep, do whatever it takes to relax your Sim. Make him your best mood. Be sure to go to the bathroom if your Sim is sick. Don't forget to brush your teeth afterwards.
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Have a Brilliant Party in Sims 3 Step 15

Step 10. Know that if you throw a party again, you won't have to worry about cleaning, if, of course, it's not a secret party and your Sims parents shouldn't notice
Advice
- The presence of such things as a pool, games, TV and so on, to cheer up guests, albeit not necessary, but definitely will not hurt.
- Different Sims leave at different times and say different things. Don't worry if one of the Sims said your party sucked and left early, while the other said the party was cool and stayed until the very end.