There also known as smilie faces. If you check out the link of the contest, you can see what they are. So to participate, whenever you find emoticons/or smiley faces, you just cut and paste them in the contest section.
Good luck!!! If you have any questions, not just about the contest, please don't hesitate to ask...that's what we're here for and to care and help one another.
It sure is good to have you here with us Celtat. You've come to a friendly place filled with some of the best people on the net. Don't be a stranger for long. Just jump in and make yourself at home. God Bless.