Referrals to other lawyers tell them that you are not competing with them. Be sure that they know you are making the referral by calling them, confirming that the matter truly is one they would like to consider, and smoothing the way for your referee. Tell clients that are pleased with you that you would appreciate their referring to you their friends, family and others they know with legal problems to you. You have to ask them and you need to remind them from time to time that you appreciate referrals. Many clients may assume that you have so much business that you do not need any more clients.
People like to be wooed.
If a referred person's legal needs turn out to be right for you to handle, great. If not, you can still help the person and build on your client relationships by referring that prospective client to a professional who can give appropriate help. Watch for the prime time to ask clients for referrals. Obviously the best time is when a matter has been successfully concluded and the client's appreciation for your work is at its peak. Even if the outcome is not nearly what the client wanted, the time may be ripe if the client at least appreciates the effort you put in and the supportive relationship you developed.