The shyness or being reserved is more of the culture of Ethiopia.
Most children are raised to listen than to speak especially before the elders and guests.
The country is home to the two biggest religions of the world - christinity and islam.
An Ethiopian girl born and raised in both religions share pretty much the same kind of conservativeness.
That is, as it greatly increases the loyalty dynamic of your prospective Ethiopian love, and also strengthens the likelihood that she will carry herself with class—regardless of how much money she makes or has access to.
Ethiopian women by nature will be very street-smart, this is typically a given.
However, if and when they should meet the foreigner (typically Western) man of their dreams, it’s very possible that she will bring to your attention or request that you help support or possibly fund her (it’s very affordable) to going back to school and getting into college.
That is why you will find an Ethiopian woman to be loyal and a very good wife throughout.
Keeping the above points as they are, Ethiopian women might take the relationshiop a bit low profile until you prove to be the right one.
Lastly, Ethiopian women are conservative by nature.
This should not be misconstrued as a negative character trait by any means.