1.
If you go along to a meeting, event, or place, you attend or visit it.
I went along to the meeting...
You should go along and have a look.
PHRASAL VERB : V P to n , V P and inf
2.
If you describe how something is going along , you describe how it is progressing.
Things were going along fairly well.
PHRASAL VERB : usu cont , V P adv