There are 2 places where you can type to redeem your code. Please don't post the active code on Facebook, Twitter, or on Swagbucks. The only place you can redeem a Swag Code is in the 2 Gimme boxes.
You need to start off by logging into Swagbucks. After you log in, you will see a Gimme box on the home page. Type your Swag Code there and click Gimme. It will tell you how my SB you've got once the page reloads. If you typed it in wrong, it will tell you that too. Remember Swag Codes are "CaSe SeNSiTivE". Also make sure you didn't copy/paste the code with extra spaces in it. Make sure it is exactly the code itself! Please take a look at the screenshots below on where the Gimme box is on the Swagbucks homepage. Click them to see original size.
Sometimes Swagbucks will give out the code for free. The screenshot you see below is a free give out on Facebook. They tell you what the code is directly. This code was giving out because Swagbucks mistakenly said there was code in the widget when there wasn't one. So they gave us this code to make up for everyone's hard work. :)
Some other codes requires some hunting down. Here is a screenshot of a Twitter post they did. They are asking for a certain word they tweeted before. :)
In the widget screenshot you saw above, you saw how they said it was in the blog post. Sometimes the code will be in the blog post, sometimes they will give you hints in the blog post. :) See the screenshot. (Click to see original size)
So after you find the hint, follow it and find the code! So like it said, the code was in one of the items in the Swag Store. The code used in the example was 24HoursXXXX. The XXXX can be any combination of number and letters. Codes like these are usually unique to every user. So the code can look like 24Hoursb3j4s6. When you see words bunched up together with no spaces or something following letter/number combinations, it's most likely a code!
So that's pretty much it! I hope you have fun finding Swag Codes! Happy Swagging!