Walker and the elder placed a hand each on each others' head. Walker knew that he wanted to swap the knowledge on his skills that revolved around speaking with all the elemental spirits. This was much harder to grasp but even if the elder learned a little it would be something to go on as he worked closely during the spirit forging process.
'User wishes to swap the knowledge on spirit speaking with the elder of the dwarven race Elnum. The recipient is selecting knowledge to send to the user.'
Walker didn't realize that the knowledge swap skill would require the elder to send knowledge too but it was clear that the exchange was acceptable.
'The elder; Elnum, has selected the knowledge on true spirit forging to be swapped. The skill related to the educationist title shall activate. Both users will expend mana to accept and transfer the knowledge.'