Information gap activities are great quick speaking activities. You can use them to practice grammar and vocabulary in a structured manner. They also break up your class day. I wrote more about the information gap activities previously. On that post, I also included a preterite ir activity. Here I am including a gustar/food activity. Although I like the textbook series that we use, I do not like the way they structure the information gaps. I prefer the activities from En Español. I plan on designing more throughout the summer. Hope these help you!