Well, it's very exciting taking up a new pursuit!
1. Don't expect miracles immediately - miracles take quite a while!
2. Listen to the teacher and really try to follow what he/she says.
3. Pratice - and then practice some more.
4. Get inspired by listening/watching your favourite players.
5. Think of it as a long term project.
6. Check out Youtube. There are lots and lots of great tuition clips in every guitar style. ( there are also lots and lots of not so good clips, as well).
7. If you do stick at it, you will never regret the effort!