Sofi's is a lot of fun, especially if you're heading to the Charles for a movie after a crepe. (And the Charles doesn't mind if you bring crepes in to the theater!) A tad over-priced I think, but not outrageous. My favorite is the bacon, avocado, tomato, and sour cream, but I'd also recommend just getting one with lemon and sugar. Be aware that it's only open Wednesday through Saturday, I've gotten disappointed a few times when I realized I'd gone on the wrong day...

Lexington Market can be a little overwhelming when you go for the first time, but you can find some amazing food there and it's the perfect place to take out-of-towners. Faidley's is always a good bet for sea food but don't limit yourself. There's great ethnic food and amazing fried chicken to be found and you're guaranteed to have a good time.