@mosesobe Sure, between the first pair of book lungs and where the sections of the abdomen appear to join together (the epigastric furrow) there is a kinda lip-like structure, this is the gonoslit and that indicates that you have a female, males have a dark circular/crescent-shaped patch of hair just above where the gonoslit would be. There's some other stuff that helps but you're essentially just looking for a slit (female) or a dark spot (male).
On a separate note, all these T's seem to be calm in these photos. I've never picked mine up, but want to get a clear photo underneath it (last time I posted a photo I don't think it was clear enough).
Is there any tip to getting to stay calm & relaxed like the ones in all these photos? (Not that I would try, just curious)