こ-Words
Words that begin with こ are used for things that are either relatively close to the speaker, or closer to the speaker than to the listener
そ-Words
Words that begin with そ are used for things that are further from the speaker and/or are closer to the listener
あ-Words
Words that begin with あ are used for things that are far from the speaker, and also the listener if there is one
ど-Words
Words that begin with ど are used to ask a question
この
This
その
That
そこ
There
ここ
Here
あれ
That over there
どれ
Which one
これ
This one
それ
That one