Start either in promenade position, or preparing to step O.P. with RF, towards diag center.
1. RF forward in CBMP towards diag center. Commence to turn R.
2. LF side. Continue turning to R. If commenced in PP, closing to lady.
3. RF back, right side leading. Feet do 1/2 turn over 1-3, body slightly more.
4. LF back in CBMP, partner outside.
Timing in Foxtrot is QQQQ, Waltz is 12&3 or 1&23.
According to the book, rise & fall would start at end of 1, continue through 2-4 and lower at end of 4. In reality, most people soften the rise on 2 and then go up again on 3, but not so much as to affect the footwork (HT, T, T, TH).
Regards,
Jonathan