The mnemonic for Follow and Cross is "Scoot Back; Eroo". Actually,
it's a Scoot Back and Extend Eroo. Scoot Back, Extend, ends Quarter
to Handhold and Circulate, and the centers Cast Off 3/4.
The mnemonic for Follow and Criss Cross is "Scoot Back; Cross Eroo".
Ignoring the fact that there is no such call as "Cross Eroo", Scoot Back,
Cross Extend, ends Quarter to original Handhold and Circulate, and
the centers Cast Off 3/4. That is, the difference is that the new centers
come to the opposite hand before casting
\sxvlines{b4e,g2w,g3e,b1w}
\syhlines{g4n,g1s,b4n,b3s}
before Follow and Criss Cross
after
These calls have two parts. They originally had somewhat different definitions
which were incompatible with the modern fractionalization,
but no one cares.