arduino doesn't execute first few instructions

when i first plug my arduino in, it sometimes skips the first few instructions during the first loop cycle. why does it do this and how can i fix it?

Please post the code in question.

Plug it into what? The computer? A power jack?

What Arduino?

What code?

How do you know it skips the “first few” instructions?

It is not skipping instructions.
What we have to find out is why you think it is.