There are a few things you need to know before you decided to do comedy routines.
First of all, you need to know your audience. It doesn’t matter how good your routine is if it isn’t a good match for the people you are joking with. Don’t tell risqué jokes if you aren’t sure that your audience will appreciate it. A nursing home might not be the best place to try out your newest R-rated routine. So know your audience.
Keep your jokes current.
This is most important if you are doing current events or political comedy. Jokes about Nixon won’t go over if your audience doesn’t remember when he was in office. This goes along with knowing your audience. You want to make sure that your material is as relevant as possible. If you think this will be a problem for you, then go with more generic material.
Lastly, you need to practice. A great routine is no good if you lose your place halfway through. Tell your jokes in front of a mirror and study your delivery and timing. Try using different tones of voice and facial expressions. Then tell your jokes for friends, and ask for their honest feedback. Listen when they tell you what works and what doesn’t work, and pay attention to what makes your friends laugh.
If you think you can make it in standup comedy, you need to know that it isn’t easy. You need to know the audience you will be performing for and keep your jokes current. Once you have that, you need to practice your routine until you’ve got it down pat.