If I can give an opinion, one reason for inactivity may be because at the moment, there is really no guiding force to push us forward other than whatever personal goals we have set for our characters, some of which are difficult to justify jumping into social situations with others. All the characters are fresh *I assume anyway* so even the players are unsure of their own creations at the moment, which is usually what happens in the beginning of RPs.

That's my thought on the matter at least. You could try giving everyone a reason to gather, or something to push forward. In a lot of Harvest Moon games, the Mayor took the new guy around the town on a tour to meet everyone. That could help stimulate some interaction with everyone.