The keynote program is the great taster session for prospective clients. Certified Teachers are able to offer the keynote at any price (no minimum pricing!) and there is no licensing fee due to SIYLI.
The other alternative is to invite clients to a public program (discounted tickets are sometimes available through SIYLI or through a teacher running the program), or hold an invite-only program for up to 30 prospective client contacts. For an invite-only program, there is no minimum pricing.