In order of preference:
Find a high place with a clear view to the south west. Go there on Thursday morning before sunrise and wait. Observe the stillness of the dark, and the changes as the light increases. Watch the sun rise, if you have a drum, drum the sun up until it is clear of the horizon. Or clap, sing, use a rattle.
If this is not possible, there is a suggested solo ritual on the BDO Facebook page from previous years (look through the past events tab on the page)
This link should work