Hello, all!

I just got my sewing machine last night and had fun with some scraps I had around
(made a little pillow! )..., but I was just kind of free-handing it, as I don't have any straight pins.

Now, I am going to go pick some up, but my question is:

Is there a "way" to sew over the pins?  I am scared I will bust my needle or hurt my machine sewing over the pins in the fabric!  I thought I had seen other people (TV) sewing over pins.  Or, am I mistaken, and you take the pins out before you sew?

Thank you in advance for your response!