Don't forget to add it to you ImportConversations.uc file in your Classes folder. Add a few speech events. In the window that pops up click Add Choice. The type in the choice text and an approriate label. The label defines which event to jump to.
Any event can have a label.
Click OK when you're done and click Add Choice to make another choice. When you have entered all your choices click Update. After clicking Update, click Close. You should see you have a choice event selected now. When you unselect it you'll see that it's red.