This
A thing or a person is close
This = singular
That
A thing or a person is far
That = singular
These
Things or people are close
These = plural
Those
Things or people are far
Those = plural
Close = x...........................y
This pencil in my hand is yellow.
These pencils are not very sharp.
Far = x..............................y
That car across the street is a Kia Carens.
Those cars in the parking lot are Algerian made. (LOL)
LOL means; Laughing Out Loud

Take these stairs to get to those buildings.
That blue building in the middle of this picture is very tall.
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