Exhibit 32.1

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

      I, Robert P. LoCascio, Chief Executive Officer of LivePerson, Inc. (the
"Company"), certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002, that:

      (1) the Annual Report of the Company on Form 10-K for the fiscal year
      ended December 31, 2004, as filed with the Securities and Exchange
      Commission (the "Report"), fully complies with the requirements of Section
      13(a) or 15(d) of the Securities Exchange Act of 1934; and

      (2) the information contained in the Report fairly presents, in all
      material respects, the financial condition and results of operations of
      the Company.

Date:  March 16, 2005           By: /s/ ROBERT P. LOCASCIO
                                    -----------------------------------
                                    Name:    Robert P. LoCascio
                                    Title:   Chief Executive Officer


This certification shall not be deemed "filed" for purposes of Section 18 of the
Securities Exchange Act of 1934, or otherwise subject to the liability of that
section, nor shall it be deemed to be incorporated by reference into any filing
under the Securities Act of 1933 or the Securities Exchange Act of 1934, except
to the extent the Company specifically incorporates it by reference.