When you get promoted over your friends, treat them the same as last week. Titles change. People shouldn’t.
LEADERSHIP
LEADERSHIP
A promotion changes what you are responsible for, not who your friends are, but it quietly offers you a new way of speaking to them and it is easy to accept without noticing. The tone shifts first, then the plans, then the honesty. Most people who lose friends this way never made a decision to. They just got slightly more formal every week until the old version was gone.
Keep the same jokes and the same directness. Ask their opinion about things where they know more than you, and say so in front of others.
Has a new title ever changed how you talk to friends?
Free, with nothing to buy inside it.