I used to think helpfulness was just doing something, and I still think that's what it means. My new definition of helpfulness is working when your asked to and even when your not, and helping your teammates as much as you can. An example of this would be, if your teammate asks you to help with a poster or an essay or simply just getting them a pencil, that is being helpful, whether you realize it or not.
A time when I wasn't helpful would be earlier this year when we did human anatomy posters in science. I missed the day when we were assigned groups and the next day I was put in a random group that I wasn't interested in so I did absolutely nothing. A time that I was helpful in a project was the Silk road exhibition. After we did all the information spreading we all ate the food that we all made and I was serving all of the North Africa food to make up for not presenting as a was a guide in my group so they were the ones who said all of my research.
I would like to participate and be as helpful as I can with presenting and researching but also try to balance it so that everyone else gets a spot to research to instead of me getting all of the glory.