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For soup? I shake it. Chicken noodle is very liquidified, and I can hear that. Mushroom and tomoato are more solidified / gelatin, and with them I just grab a can and it's a surprise each time I have soup, lol.
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For things like spcies though, I use a "Pen Friend" at:
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It's the shape of a pen, but has voice recording / play back functionality. It comes with sheets of QR code stickers, you put the stickers on whatever you want, then with the Pen Friend you can record a voice description to each QR code. When you want to know what something is, you touch the pen to the QR code, and it will repeat whatever voice description you recorded to that QR code.
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What we did is you know those little round stoppers you put on the edges of the inside of cupboards, so they don't slam shut? Round little gel type stoppers that stick to the inside of cupboards? We bought a bunch of those, and put the QR code stickers on them so they can be transplanted when a new spice bottle is bought, and put them on the top of each spice. When I'm cooking, I just go through the spice rack with the pen tapping the top of each spice bottle, and it will tell me what message I recorded for that bottle -- Thyme, Paprkia, Chilli Flakes, Garlic Powder, etc.
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Hope that helps.