First of all, Spanish chat will give you a great opportunity to practice and be exposed to the language outside of the classroom. Secondly, if you are a Spanish 3 student and will be granted extra credit points. For a Spanish 4 students is a requirement to be met as part of the grade. As Spanish 4 student, you will have to attend to two of the meetings during the school year.
If you are in Spanish 3, you could ear extra credit on the 1st Saturday of every month by going to Spanish chat. If you are in Spanish 4, you could attend more of the two required meetings.