Even looking at how other crews go for recruiting there isn't much to do besides what Musa said.

[She doesn't bother to offer herself as a representative, for several reasons, she still doesn't even think she really should be on the ship to begin with. But when the fortress began crumbling everything happened too fast and after that... She has just... Tried to not even think of anything.]

I wouldn't say that we have a shard, though, just having one doesn't seem to mean much regarding returning home faster. And announcing it could make others want to target us since we're a small crew. But it should be said that we don't pillage or anything like that, it may make a difference.

[Or maybe not, honestly she's not very sure of herself lately, but she can't just stand around like a ghost. Or keep moping about Ciel not being there.]