How to make pasted photos look real....

Greetings all -

I am new to the forum, also kind of teaching myself PS. I do searches and look for tut's on things I need to know. However I do have one question. I can't serch for this because I am unaware of the term it MAY be called...if any. Here is what I need to know.

Is there a way to make photos that are imported to another photo look real? For example. I have a motorcycle club. My bike is no where near customized like some of these $20,000.00 bikes. But if I want to "cut out" a picture of a bike like this and insert my self into the pictue (like standing behind, or next to the bike) and make it look like I really took the picture with the bike. Not like it was pasted in PS. You know..maybe if the lighting was different when the pic was taken of the bike and then me with different lighting taken elsewhere would look too fake. I want it to look as close to real as I can. Does any of this make sense? If so..can you please explain how?

Thanks in advance...

You'll have to go about this carfully to make it look real. In the photography, for example, you want the light to hit you from the same direction that it hits the bike in the picture you want to put yourself in. This would be easier and look more real than creating fake lighting yourself in PS.
And as for the cut job, very carfully select the entire outline of your body (maybe use quick-mask mode in aid) and feather the edges under select-feather and chose 1 or 2 pixels depending on the resolution of the image. Or you can use a wacom tablet to simply erase around yourself with the hardness set low.

Once your cut out and dropped into the picture, adjust the levels and sharpness to match, and maybe paint a subtle shadow below your feet for perspective.

This is one photoshop excercise that can be approached in several different ways, just find what works for you.

Great!!! Thanks a lot for the tips...I work give it a try this weekend!