The easiest way to view attendance in IC is to use the Attendance Summary Report. Find it on the Main Menu under Instruction -> Attendance.
Choose the quarter and section you want to report on. Then, click the blue 'Generate PDF' button at the bottom.
There is also an Attendance "Insights Dashboard" in Infinite Campus to view your students' attendance. The first time you use it, there are a good number of setup steps, but once you've done it, it's very fast. Below are the same directions in two formats: screencast that you can pause and follow along, or a step by step document with screenshots to scroll through. Please reach out Stuart or Jesse if you'd like some 1 on 1 assistance getting your settings right.