[dangerface]

> I can lead him to be a better developer

You can lead a horse to water but you cant make it drink, people are more stubborn than horses and will just act out if you try to lead them.

You should act as an example of how the junior should behave. If you want the junior to ask for advice when they need it and value that advice then you will have to demonstrate this.

Don't limit yourself to asking the lead or asking about things you don't know about. Valuing other peoples advice even when you don't need it is a sign of seniority not a sign of being incapable, it shows that you understand that improving your skills never stops and you can find improvement in anything.

When the junior asks you for your advice your job is to act as a sign post point them down the right path. Tell them warn them of gotchas and encourage them but don't carry them for the journey or spoil whats at the end, thats for them to figure out.