Here’s how to establish a mentor relationship:
1. Find someone you admire
2. Go up to them and ask them: what would I have to do to be you in 10 years?
Of course, the timeframe may change. The point here is that you ‘re making the question about them (you didn’t ask “can you help me to…?”) and catching them out of guard with your question. Ten years is a sufficiently long time period that the answer will require a follow up conversation.
So: ask for help by making it about the other person; always be respectful and considerate with them, showing true appreciation. You can’t fake this.