how to say politely you want to walk off
How to say politely to a salesman you want to walk off of the shop without buying anything.

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oh you have nice products here but I would patronize you some other time

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Or "thanks, but I am just looking."

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I want to signal in a way that I need to check other shops before making my descion to buy an item.

Can I say," Thanks but I should look around other shops."

Many thanks
Amir

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No thank you.

Or. Thank you, but no!

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I don't mean to be rude but I really must leave now.