The 41-year-old actress claims to be a great organiser and always knows which people from her different friendship groups to invite to her gatherings to provide the best atmosphere.
She said: "I should have been a party planner. I`m a good mixologist in terms of personality types. I do a tree trimming party every year- 15 years I`ve been doing this. At my tree-trimming party we always do chilli - turkey, regular beef, and vegetarian. Everybody is satisfied."
However, Jennifer`s get-togethers don`t always go according to plan, admitting sometimes the occasion can be spoiled by an intoxicated guest.
She told Allure magazine: "What ruins a party? A really drunk person. Trust me. It`s happened."
The former `Friends` star also claims her parties work well because she makes such good cocktails, even though she uses cheap ingredients.
She revealed: "I can make two drinks really well: a dirty martini and a Bloody Mary. People are like, `You make the best Bloody Marys,` and my secret ingredient is basically Mr and Mrs T Bloody Mary Mix.
"It`s not some fancy mix that they do with the horseradish and Worcestershire sauce. It`s the 7-Eleven of Bloody Marys. It`s the trashiest."
A Bloody Mary is made of vodka, tomato juice and other flavourings such as Worcester sauce or Tabasco, while a dirty martini contains gin, vermouth, and olive juice.