A welcome culture-shock for me during my stay in Gabon: I noticed that many homes did not have grills over their windows.
The hand-clapping and dancing during church services was a first for me. The church services in my homeland are very subdued. I must say that I enjoyed the vibrancy of the church services in Gabon.
Raining during Christmas and New Year: This was also new to me, though it once did rain in my hometown during Christmas (and what a disappointment that was!).
Articles to help you in your expat project in Gabon