You use the swagbucks search bar and randomly you'll get a box with a random swagbucks amount. You just put in the 3 letter code and you get those points.
To maximize the quantity of searches I do without just randomly searching for things, I'll search for Bank of America or disboards instead of entering their .com address.
We do that too lol I always feel silly searching for Facebook when i can just pick it in my drop down..but you never know what will give you the points. I got 9 point this morning searching for Chase Visa lol