It could be because they have a horrible sense of humor to begin with or just that they are not really cut for the entertainment industry. You could avoid amateur mistakes so you would be able to always make your performance work well. Do not bad mouth other comedians, like what many standup comedians do. Now, you could learn standup comedy much easier than how people did it before the age of videos and the Internet. Take advantage of the current available resources. Now, there is no excuse for any aspiring standup comedian to falter. It may take time to find and access videos from video sharing sites. Logically, antics and jokes that were hilarious and truly funny in the past years may not be funny or even entertaining these days. Aside from the changing and evolving preferences of audience when it comes to humor, there just are too many other factors to consider. You need to learn standup comedy that tunes in with the present humor and wants of audiences. Famed German philosopher Arthur Schopenhauer reprimanded the frequent misuse of the German loanword humor as to be in the same context with any type of comedy. Nevertheless both humor and comic are utilized when studies are done regarding comedic schemes and systems. It is said that humor involves more of a response while comic is characterized by stimulus. You can apply all that you've learned when it is your time to perform. As you find out more about how to learn standup comedy, it cannot be helped that you will likely find sites that will offer you products and services that pertain to this job. There are books, videos and other kinds of training manuals that many companies are offering to people like you who want to know more about it and have a great inclination to become part of the industry. Before you go to the place, prepare a skit and practice how you want to tell it to an audience. Once you are there and you have the mike, give it your best and make the performance something that you will be proud about. You never know, but there are many standup comedians that were discovered at these venues.