In the case where a male is the reciever, the friendie is like a handie. In the case of a female reciever, any form of fingering or stimulation of the clitoris is acceptable.
The friendie can be given by both a male or female and there must be a mutually agreed upon friendship between both parties.
Friendie 1: Did you see his new pic omgg!!???
Friendie 2: YES omfg DEAD ASDGHJKL