Turn the cards unicorn side down and make into a grid. Rock-paper-scissors for who goes first. The first player turns over two cards and says the sight words. If they match, the player keeps the cards and goes again, and if they are different he turns them back over and it is the next person's turn. If the player doesn't know the words they turned over their partner can help, but the player does not get to keep the cards. The player with the most matches at the end of the game wins! Record yourself reading your matches when the game is over.
Download the following freebie. https://thelettersofliteracy.com/unicorn-sight-word-matching-game/ Print it out and laminate before you cut. You may want to print on patterned stationary so the students cannot see the words through the paper.