me thinks potteroo is on to something correct. the local AIP or terminal charts will indicate missed approach procedures if charted like SFO or SYD. or if the tower clears you for a visual approach, the controller will give you a missed approach instruction in case you missed or if you carry out a go around you contact the tower pronto for instructions. in the absence of all the above, for god sake you are responsible for staying visual, avoid clouds, traffic and obstacles and join the prevailing traffic pattern. this more so in smaller airports where the tower is a one man show where the controller controls ground traffic, dishing out airways clearances etc. just because you are an atp flying big jets going to big airports with radar control and never joining a visual traffic pattern doesn't mean you forget your responsibility of visually eyeballing yourself into a visual traffic pattern after going around.