Girls, is it weird if you received a letter with text saying that I'm interested in getting to know her?

For context, I find a girl really cute that it is in 1st year of the same major as me in university, I want to talk to her but don't know the best approach without being creepy, it is better a letter or just approaching her and saying like "hi! You are on the same major as me, are you liking it so far?", what you think?

Girls, is it weird if you received a letter with text saying that I'm interested in getting to know her?
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