Help! I have been chosen as one of the 20,000 givers for World Book Night and now I'm feeling very nervous about going out there and forcing copies of books on people. It doesn't help that I've ended up with my second choice, Let the Right One In, rather than my first, I Capture the Castle. I would have been happy foisting Dodie Smith onto practically anybody – no one could possibly be offended by her charming story of growing up in a crumbling castle. But John Ajvide Lindqvist's vampires? I love Let the Right One In, I do, but there's child abuse, a horrific battering to death, throat cuttings, murder by cats – it's way more gruesome and disturbing than either film version, and now I've got to go out and press it upon random passers-by.

Looking at the World Book Night website, I see that "givers will be chosen first based on their commitment to give books to non or light readers and the answers to the questions to where, who and why, then geographic location will be taken in to account". I seem to remember promising that I'd be targeting people in the park in the afternoon when I was out with my daughter – and somehow I'm not sure Let the Right One In is going to be quite appropriate for toddler-chasing mums. Perhaps I'd better roam my local pubs that evening, looking for anyone who looks like they might appreciate a shockingly dark tale set against the Swedish snows.

But am I really going to find 48 people who'll enjoy it in my near vicinity? I don't know. I wasn't involved with World Book Night last year, so I'd love any tips from people who did volunteer about how you handled it. If you're not a giver, then please tell me how it would be least annoying to approach you with a free book. About murderous cats. Otherwise, stay away from north-west London on 23 April.