I care mostly about the personal growth of my team, I firmly believe that if I help them be the best they can be, the world will be a better place (even if it means losing some of them because they realize they want to do something else, the world will still be a better place).
This means sometimes giving advice, sometimes teaching, and sometimes getting out of the way and let them do their thing (even let them fail, and help them learn from the failure).
The scope goes beyond technical advice, I help them frame problems, think about what they want and what they really care about, it's a mixture of counseling and a typical tech lead.
The trick is doing it without making it forced or weird. It took a lot of exploration of my own emotional state, being able to empathize a lot, and allow myself to be vulnerable. This helps building strong, honest connections that I truly think get the best out of people.