Summer night were always muggy and hot. I never quite get enough to drink and along with my sister, found myself sitting on the front porch step. This sentence doesn't make sense. To go with the tense of your story it should be "I never got" and quite is in a weird place. Also make "Along with my...." a new sentence. Another droplet of sweat trickled down the side of my face as I chatted about nothing.

My eyes strayed along the concrete path and up the road stopping finally at the steps that led to the local primary school. The distance was about 150 feet on either side for the stairway were homes resting on the small hill. The home on the right had its driveway parallel to it, the one on the left had its garden and a large tree up against the fence which cast a shadow. This is almost a run on sentence. You say it had a garden why? You need commas.. Also it would sound better if you took out the part about the garden and just mention the tree.

My eyes fell Had fallen. To go with your tense. on the shadow on the steps. For some reason I couldn't take my eyes from it. How it seemed to form the shape of a tall thin boy wearing a hoodie. The shadow seemed to be looking in the direction of the house directly across from the stairway. The tense in this paragraph doesn't match that of others.

I giggled to myself thinking how my mind played trickes tricks on me, creating this "boy" out of the shadow of the tree. But something wasn't right. Have you ever had that wierd weird "tingle" at the base of your mind telling you that something just wasn't right? I stared harder at the shadow, my gaze fixed.

Then it moved.

Terror gripped me as I watched the shadow slowly turned its hooded face toward me. It looked directy at me, inside me, through me. I knew the shadow registered its presence. I felt a menaceMenace? Not the right word... spread over me, followed quickly by the dread and the desire to flee.

My sister had fallen silent. Without turning to look at her, I asked "do you see it?" I slipped a glance in her direction, I noted that her eyes were too locked on the shape thats on the steps. I looked back the shadow was gone. The eeriness that surrounded it was gone, the menacing feeling I had also gone and try a . The summer..the summer night resumed its warmth again.

Just a little tip that may make the story more relatable to the reader. Put the reader IN the moment. The story was all past tense, but I don't want to know what you felt like THEN I want to know the fear that ran threw you in THAT MOMENT. Which you should also talk about. Be more descriptive of the fear you felt or were feeling. Did it make your hair stand up? Why was the shaded figure so creepy?

hey perfectly creepy! I love the idea of this piece, and it's wonderfully concise so I really got the feeling of this weird, fleeting encounter that was utterly absurd. Nice one!

In terms of grammar and sentence structuring, there were several times I found myself rewriting bits for you, but I just think you need to read it through a few times, maybe even out loud to yourself so that you feel where you need a comma, or a semi-colon where you pause a bit longer.

Here's an example:

I never quite get enough to drink and along with my sister, found myself sitting on the front porch step.

Because this sentence could function perfectly well without the "along with my sister", this should have a comma either side: "I never quite got enough to drink and, along with my sister, found myself sitting on the front porch step."
There you also wrote "get" when you started and seem to wish to remain in the past tense... you did it again here:

I noted that her eyes were too locked on the shape thats on the steps.

You'd want "that was" instead

Generally, pretty good don't have nightmares, now...
~*cottonrulz*~