Shanoa nods and readies herself as a few men comes towards her. Since it appears that she is unarmed, they most likely think of her as an easy target. Well the point is to push them overboard and not kill them right? So she won't be summoning a weapon right away.

When the men get closer the glyph on one shoulder glows, and with a gesture, a large stone fist appears to punch two of the men with such force they go overboard. She will just keep doing that for now.