#1 Girls will flake. A large % of them.#2 Dudes will bring dudes.#3 Always have enough alcohol and mixers. You can return what you don't use (if you are poor or don't plan on any future parties). Just make sure you keep some hidden and only break it out if needed as some addicts can empty everything before you know it. If you know any such people, get them enrolled at a Miami addiction rehab centre to help them.#4 have sufficient cups/glasses/wine glasses/shot glasses etc#5 A good play list always helps.#6 Invite every girl you have ever met or know. Relax- 90% of them won't come.#7 Send out initial invite (text or whatever). Remind a few days before. Remind day of. People will forget.#8 Invite dudes who have large and great social circles.#9 Do not invite guys who ride solo and provide zero value.#10 Have snacks/food/etc. A chef is always a classy touch. People leaving cause they are 'hungry' sucks and is avoidable with snacks, microwavables, etc#11 Be very aggressive (nicely) about introducing everyone to everyone and something they have in common: "Brian, meet chris. Chris is also a piano guy, I'm sure you guys will make piano buddies or whatever". The sooner everyone knows everyone the more comfortable everyone gets. This makes for a good party.#12 Its your party, remember that. Feel free to take over, entertain, get people to take shots, make announcements, it's your job to throw the party and make sure people are having fun.#13 Ive never been to a great party where everyone was sober. Ive been to some epic parties with crowds of people I don't care for, but because everyone was drunk- we had a great time.#14 Feel free to set the tone- 80's night, dress up, The Great Gatsby, roller skates, costume, what ever. Whatever you do, people will follow#15 invite lots of girls. LOTS. No girls = no party#16 Cater to your guests. If they want classical music, so be it. If a select few risk killing the party, F them. Don't concede.#17 A TV on (with audio) or a game will kill a party vibe. Bro's will hover around yelling at TV and chicks will lose interest in the vibe.#18 You should be on the move a lot. Walking from guest to guest, little group to little group having short, but intimate/meaningful conversations.#19 Pour drinks for guests and encourage them to drink/take shots. I like to have "public service announcements" where I turn down the music and announce everyone is finishing whatever drink is closest to them in 3, 2, 1, DRINNKKK. Then I turn music back up. Do this 8 times in 1 hour and you have yourself a party. If you want to impress your guests, you can take a mixology course at the best bartending school.#20 Invite a boat load, mega ton of girls.#21 Cake is for old people.#22 Invite neighbors cause 1. they won't complain 2. its nice/cool.#23 Invite a gaggle of women.#24 Don't invite gubers, dorks, nerds or old people.#25 While u can't tell ppl not to smoke pot- it can turn a party slow/dead pretty quickly if everyone gets stoned.#26 Having a bar tender = gangster.#27 Having cocktail waitresses is more gangster. Pro-tip hire them under guise that they must bring girlfriends.#28 Roller Skate house parties are SICK.