As an actor you bring some of your own experiences which can make things easier. You build off of it, but your imagination is always the best thing you have as far as creating things I think specifically for what that character is going through. But you're definitely drawing obviously upon things that you can connect to, and then you kind of mold the change that you're making into something that's right for the character.
Vince VaughnSometimes people that are very good at improvisation in life, meaning like stage improvisation, aren't good in films because you have to ultimately take a scene where it needs to go. It's not about just saying something that's funny. You can say something funny but if it's not on story or driving the scene to its end it's really not very helpful at all.
Vince Vaughn