Give them a challenge ,impart the knowedge give them the tools ,let them work it out be watchful be encouraging if it doesn't work have them check it give them a hint see if they can figure it out most people like having to solve the problem that means they have found the path you pointed out and most of the time they retain the knowledge because you made them look for it and they discovered it on their own without you having to hold their hand when they get that aha moment you know you taught them something they won't forget
