There is one pronoun in the sentence, your.
The pronoun 'your' is a possessive adjective, a word placed before a noun to describe that noun (thinking cap) as belonging to the person(s) spoken to.
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The group of words, "a feather in your cap" is not a sentence, it contains no verb.There is one pronoun in the phrase "a feather in your cap", the possessive adjective your.
There are two nouns - feather and cap.
The vague pronoun is it.We can't tell if the speaker wants the cap or the marker handed.The sentence should be rephrased:Remove the cap before you hand the marker to me.Before you use the marker, remove the cap and hand it to me.
Wearing his baseball cap back to front, was just a phase he was going through.
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The is one pronoun in the sentence, "Put on your thinking cap.": yourThe pronoun 'your' is a possessive adjective form, a word place before a noun to describe that noun as belonging to you.The pronoun 'your' is describing the compound noun 'thinking cap'.
The group of words, "a feather in your cap" is not a sentence, it contains no verb.There is one pronoun in the phrase "a feather in your cap", the possessive adjective your.
There are two nouns - feather and cap.
you are thinking
winning the race was quite a feather in my cap
I'm thinking of a Fez.
The vague pronoun is it.We can't tell if the speaker wants the cap or the marker handed.The sentence should be rephrased:Remove the cap before you hand the marker to me.Before you use the marker, remove the cap and hand it to me.
The ice sheet you're thinking of covers 98% of the continent.
"Put on your thinking cap" is an idiom that means to start thinking carefully and creatively about a problem or situation in order to come up with a solution. It implies the need to focus and use one's brain to solve a particular issue or challenge.
Oh, put on your thinking cap. You know the answer to this.
Jimmy donned his cap and walked to the market.