The main reason why I didn't contribute as much was mainly because I hate cigarettes. Because most of the garbage on the ground were cigarettes, I didn't feel comfortable picking them up.
Our teacher was really disappointed that we couldn't even handle a task that small. He had to constantly tell us to continue cleaning like we were in Grade 3. I think it made him really annoyed in my opinion.
Honestly, I was more disappointed in myself. I could've just picked it up, since I was wearing gloves anyway, and then just wash my hands really well. I didn't even do that. Instead I just stood around and chatted. I did pick up some garbage but not enough to say to myself, "Wow. I did a great job today."
Well that's how our cleaning day went. Hopefully next time we can do a much better job.