Native speaker: "It's a vegetable."
Me: "A tomato?"
Native speaker: "No, it's green and sometimes white."
Me: "Lettuce?"
Native speaker: "No, more like a spear."
Me: "Asparagus?"
Native speaker: "I think that's right. I'm not sure."
These guessing games really interrupt the conversation, and sometimes you're not even quite sure you've figured out the right answer. Recently, I discovered that I can use Google Image Search as a visual dictionary and cut down on the guesswork. To get to the bottom of what spargel is once and for all, I just searched for it.
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So the next time you're brushing up on your foreign language skills, remember Google Image Search. It may just save you from eating rosenkohl.