Looks like he made it...
Their sex organs are in their knees, IIRC.
He has to take his sperm from his flashy little knees with his extra long forelegs and wait for an opportunity to get past her shorter forelegs and place the package on one or both of the knees on her second set of legs. It can be risky since in reaching he exposes his vulnerable underside to her fangs.
He doesn’t move his mouthparts much while this is going on but she does. To me it looks like she is communicating with him using the appendages around her mouth- palps, etc- while he is using his legs. Maybe they are discussing the pre-nup.
And quick as lightning he touches her knee.
Joe Biden could learn a thing or two here about not being obvious.
So like us...
Rather, her third set of legs.
Even when both sexes are similarly colored as when juvenile, you can tell the males by their much longer front legs.
Jumping spiders are pretty cool... you can get them to wave with you if you put your hand close and motion like they do with your fingers. They try to match your motions right and left, etc. So they can see us and interact with us, they don’t just run away like some spiders do.