What is your character doing?
Billy took a drink of water.
Why is your character doing what he is doing?
The heat of the day drew the moisture out of Billy's throat. To quench his thirst, he took a drink of water.
How does your character feel (emotions)?
The heat of the day drew the moisture out of Billy's throat. He was physically and mentally exhausted from hours of working outside. To quench his thirst, he took a drink of water.
Where is your character?
Billy sat on the edge of the porch. The heat of the day drew the moisture out of his throat. He was physically and mentally exhausted from hours of working outside. To quench his thirst, he took a drink of water.
What does your character see, hear, touch, taste and smell?
See
Billy sat on the edge of the porch watching tumbleweed roll across the yard. The heat of the day drew the moisture out of his throat. He was physically and mentally exhausted from hours of working outside. To quench his thirst, he took a drink of water.
hear
Billy sat on the edge of the porch watching tumbleweed roll across the yard. The distant calls of buzzards drifted through the air. Moisture was leached from this throat by the heat of the day. He was physically and mentally exhausted from hours of working outside. To quench his thirst, he took a drink of water.
taste
Billy sat on the edge of the porch watching tumbleweed roll across the yard. The distant calls of buzzards drifted through the air. Moisture was leached from this throat by the heat of the day. He was physically and mentally exhausted from hours of working outside. His tongue felt tick and tasted like dirt from all the dust in the air. To quench his thirst, he took a drink of water.
touch
Billy sat on the edge of the porch watching tumbleweed roll across the yard. The distant calls of buzzards drifted through the air. Moisture was leached from this throat by the heat of the day. He was physically and mentally exhausted from hours of working outside. His tongue felt tick and tasted like dirt from all the dust in the air. Reaching to his left, his hand wrapped around a cold, sweating bottle. To quench his thirst, he took a drink of water.
smell
Billy sat on the edge of the porch watching tumbleweed roll across the yard. The distant calls of buzzards drifted through the air. Moisture was leached from this throat by the heat of the day. He was physically and mentally exhausted from hours of working outside. His tongue felt tick and tasted like dirt from all the dust in the air. Reaching to his left, his hand wrapped around a cold, sweating bottle. With a quick twist, he removed the cap and brought it to his nose. His throat was so parched that he thought he could smell the freshness of the water. To quench his thirst, he took a drink of water.
As you can see from the example above, you don't have to be a great writer to be able to make a good post. Just by answering a few questions I turned 1 sentence into 9.