Whatever the a/c.
1) Max power - prevent yaw - wings level
2) Achieve max rate climb speed for flap setting
3) Trim
4) Raise flap if more than 20 degrees - no more than 10 deg at a time(C172) - allow speed to increase further.
5) Trim
5a) Call "going around"
6) 300ft QFE (some say 200ft QFE) - in stages of no more than 10deg., raise remaining flap
7) Achieve Best rate climb
8) Trim
Note;
Ensure that you turn downwide (or as directed by ATC) prior to flying past the upwind end of the runway (this ensures that there will not be a conflict with a/c taking off beneath you.)
Power is always first to minimise further loss of height. Raising flaps will cause further loss of height (C172) until airspeed is increased and a positive climb is established.
Hope that helps!