Your friend is going on a trip to Italy and has signed up for a guided tour. Now you're each discussing your thoughts about tours. You told him that you don't like going on tours, and this is how you explain why.
I'm keeping my options open.
To "keep your options open" means not to decide on something, so that you don't restrict yourself. It means to stay undecided so that you can still choose freely later on.
Keeping your options open is usually considered a positive thing.
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