Being a member of a group is gratifying but brings with it responsibilities. The contributions you make to a group make the group more effective and can be a source of pride to you.
You can contribute to your group by being a good listener, which means listening to the ideas of others with respect and attention. Contributing to a group is not all about talking all the time. As a medical assistant, you will have many people to listen to, doctors, nurses, other office personnel, and perhaps most importantly, patients. In many cases, you are the first person a patient has a chance to talk to, and you are making your "group" a success by being a good listener.
You can make contributions to a group by thinking about ways to improve the group's functioning. But as you do, you need to be very tactful about this kind of contribution, particularly when you are a new member of a group. As a medical assistant, you might, for example, think about a way to streamline an office procedure.
Another way to be a contributing member of a group is to step outside of your role and help others with theirs. A valuable team member does not simply stand aside because something is not that person's job. A medical assistant might offer to answer phones or pick up some other task when things get busy.
A group is only as strong as its weakest member, so everyone in the group should be strong and be making contributions to the good of the group. It's a win-win situation for everyone.