Hello and welcome!
For a beginner, you've started off with something rather interesting Kerri - you've clearly got an "eye" for this.
![Smiley :)](http://www.glassmessages.com/Smileys/classic/smiley.gif)
Air trap would have a smooth surface, I think. This has been moulded, so it would not have a pontil scar.
A pontil is the metal rod the glass is held on when it its hot, so it can be worked. It leaves a pontil scar or pontil mark when it is broken off when the item is finished.
One of my personal huge bugbears is it getting called a pontil. It's
incredibly common and folk seem to get into the habit.
![Grin ;D](http://www.glassmessages.com/Smileys/classic/grin.gif)
Finished glass does not come with a big metal rod stuck on it.
![Wink ;)](http://www.glassmessages.com/Smileys/classic/wink.gif)