For example, if you enter Bayswater, there will be a sign with a
line-diagram
on it listing all of the stations on the Circle (yellow) Line that will be
reached from that platform, i.e. Notting Hill Gate, High Street
Kensington,
etc. In this particular example you will then need to wait on the
platform
until a "CIRCLE LINE" train arrives, making sure not to get a DISTRICT
LINE
train that would take you to Earl's Court.

Just to add confusion, the circle line has no terminus point (except at
night but theyre not classed as such), but the trains to St. James'(s?) park
will say Circle Line Via. Victoria