The most common types of jobs that students do are working in restaurants, fast food chains and hotels as waiters/waitress/host, salesmen at shops, baby sitting for working mothers, lawn mowing in people's gardens, call centre executives at call centers, construction work, freelancing for online websites and many more jobs.
However the most common place where students find jobs is fast food restaurants and they pay them per hour basis. It not only pays off good but the students can work together with their friends at one place and have fun too.
Apart from restaurants the most common place for students to find jobs is at the malls in any shops where they are either given the job for a sales person, cashier and some times even as cleaners.
These kinds of jobs are mostly common in summers because it is the peak season when all students get holidays. It is the best way to earn extra money and gain experience while still in the study phase.