I am majoring in inorganic chemistry at university.

He always tries to maintain the face of things.

His ostensible attitude is hiding what he is really thinking.

He is smiling on the face of things, but he is sad inside.

He seems happy ostensibly, but it might be different in reality.

I am waiting for a contact from the secretariat.

Which direction is your house?

He was sentenced to life imprisonment without work for his crime.

He is contributing to the community as an unpaid doctor.

He is doing volunteer work unpaid.