This one isn't particularly subtle, and yet to our surprise, there are people out there who've never noticed it before. Chick-Fil-A is one of those companies who've settled on a 'joined up handwriting' style of logo - of which we'll see plenty on this list - but they've added a little decorative twist to get you thinking about their product range every time you see their logo. From a psychology point of view, that could be the difference between you making a purchase, or deciding to pass.
The little twist we're referring to is the presence of those red dots above the 'C,' which combine with the design of the 'C' to remind you of the basic appearance of a chicken. The beak on the outside of the curve of the letter seals the deal. This isn't a subtle as some of the techniques we'll see in operation on this list, but it's effective.