You're about as effective at pep talks as Rhyn.
Is this supposed to be a pep talk?
Gabe turned towards Rhyn, in sore need of a pep talk as only his best friend could provide.
Entertained by her pep talk with the flowers, Deidre reached her towering apartment building a short time later and paused to collect the mail.
"Appreciate the pep talk," Gabe said drily.
To mention examples, blood serum solidified at a suitable temperature is a highly suitable medium, and various media are made with extract of meat as a basis, with the addition of gelatine or agar as solidifying agents and of non-coagulable proteids (commercial " pep tone ") to make up for proteids lost by coagulation in the preparation.