Keep on the main road until turning right onto Rua do Sobaral (two streets past Church).
At the first three-way intersection (Y-shaped), keep left. At the next, keep right (with the forest on your right).
The markings from here to Azinhaga are confused and quite possibly misleading; mostly to do with uncertainty at a municipal level as to exactly where the camino should be, and also because frequent flooding in the area make the original way difficult. The arrows will always get you to Golegã, but there is a possibility that they take you through Pombalhino first.