Often yes, depends on time of year. Summer & Christmas time there is often quite a bit to fill.
Believe RDW rate is around £28 (once fully passed out) based off the advertised salary (divided by 52.166 weeks divided by 37 hours per week, then 1.25x for RDW)
Sign on, collect revenue equipment/diagram, check notices. Pass to first train (if required), handover (so things like any assists onboard, issues with train facilities, whether a ticket check has been done, any issues with passengers). Once onboard let the driver know you're ready, then start the routine of making announcements, walking through the train to check for lost property, security issues, doing a ticket check, making sure passengers know where they're going (checking they're in the correct part of the train if it splits anywhere). At stations, open the panel and key on, stepping onto the platform to do a visual check and assist passengers with ramp/helping hand etc.)