Seems pretty easy, but I don't know to say something that basic. It should be something like "mich interessiert", but I'm answering to an email here and I want to make it not rude.
closed as off-topic by Crissov, Em1, boaten, Hubert Schölnast, user unknown Nov 6 '15 at 22:53
This question appears to be off-topic. The users who voted to close gave this specific reason:
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