A person who answers without thinking is often referred to as impulsive or rash.
Someone who constantly thinks and reflects on various topics can be described as contemplative or introspective.
it means that you think without acting, you do things impulsively without actually thinking them through beforehand.
"Reading without thinking leads to a cluttered mind overwhelmed with information. On the other hand, thinking without reading can result in a lack of context and depth in one's thoughts, making them unbalanced and uninformed."
There is not much difference. They can, in fact, mean the same thing, but "thinking of you" is used more when one is thinking about what would please or help the other person. "When I saw your favourite candy in the store, I couldn't help thinking of you." "Thinking about you" does not always have this positive connotation. "I was thinking about you when they asked who had alibis at the time of the murder. You didn't, did you?"
You could call it a mixed group with varying interests or a diverse group with different priorities.
A person who acts without thinking is usually called "impulsive."
sudden movement
cleanshaven.
Someone who makes a decision without thinking is often referred to as impulsive or rash. This type of person tends to act on impulse rather than considering the consequences or weighing options carefully. Such behavior can lead to hasty choices that may not be well thought out.
nostalgic
It means that a person has spoken without really thinking. Most of the time it is used in reference to bragging without backing it up or talking without thinking of the consequence.
If you continually think about someone, there is a possibility that they may also think of you. However, thoughts and feelings are subjective and can vary from person to person. It is not guaranteed that someone will always be thinking of you just because you are thinking of them.
impatient
A Slave
Chatterbox is the word you're thinking of !
Detailer may be the one you're thinking of.
You might call that person an ascetic, or an eremite (hermit).