(Most) Successful entrepreneurs want to change the world as fast as possible. If they talk to you for one hour and you show 100x as much in being effective then they will likely want to advise you more.
There are two challenges however for this:
Getting the first hour meeting - if you are not getting this, then you need to refine your pitch in terms of what you are doing. Try getting your friends jumping with excitement about what you do.
Getting alot of time commitment from them - most successful entrepreneurs also have their own thing that they want to make successful. So, getting alot of time from them will be hard. But if you can excite them, show good results, then they will consider spending more time with you especially if you are willing to give equity.
Note that IMO giving equity, etc should be the last thing that you do... Your mentor should want to help you out for some minimal time even without equity, and you should ideally find his mentoring style really helpful to your company that you are willing to give equity.