What kind of design on a shirt would you give to someone special for you?
If you were to design a shirt for someone special for you ... What do you put in it? NO i wouldnt put something like "I Love You" on it. Just as I put his face subject. What do you put on it that would make him / her want to wear it? : D
Simple. Ask her what she wants to print (in secret if the shirt a surprise), then do what he / she wants to happen.