I work for a large corporate company who restrict internet access, ie no porn, gambling, games sites etc but not totally restricted to just work related stuff.

I have my personal laptop with me today. I intend to try and use their net connection on my laptop to play poker on stars.

If it lets me connect, is there any way they can tell what I'm doing or that a computer from this office has been used for playing poker, and is it likely they'd either be able to or actually find out. Ie would they need to be looking for it or would some kind of system automatically inform them?