Volos, Velestino and the villages of Pilio have a high cultural tradition. So, especially during summertime, there are many cultural events in the area and many traditional celebrations take place in different locations. Check for information about such events! Try the site of "Volos Municipality", available in English and Greek. The photo is from "Pilioritikos Gamos" (Traditional Marriage at Pilion Mountain), a feast taking place every year in Portaria village, after the 15th August, and lasting for 3 days.
Greek people are friendly people. Learn a few basic words of their language and you will have friends for ever. If you are invited to someones house it is just not polite to refuse. And you won't regret the visit !!