Here is a downloadable form which you might want to read, print out & keep on you until you know what your role is...
If in doubt ask a leader, or offer help to a leader.
http://scouts.org.uk/media/312077/Tools-for-young-people-Sixer-leaflet-form.pdf
The next link will be helpful to a parent or adult carer who should read the page in order to understand what has been recognised of their child & what may be asked, expected or encouraged within this position. possibly interpreting, explaining & encouraging & reminding a new sixer what it should mean both in & outside of cub meetings!
http://members.scouts.org.uk/factsheets/FS170056.pdf
As an older Cub, your Akela & pack leaders "hope" you will be helpful & a positive influence upon others within your six & pack. ..this is your chance to shine!