Zhujiaojiao from People's square

I'm planing to go to the town from People's square and planning to take Huzhu Express Line.
- This bus has number, what's the color and whats written on it?
- ZJJ Town is the final destination? Where should I hop off?
- To come back on same bus do I hop in at same place where I hop off on opposite side of the road?

Thanks in advance