He is acting with self-consciousness.

He became aware and admitted his own mistakes.

His sense of smell is very sharp.

He lost his sense of taste because he caught a cold.

He has a very sharp sense of smell.

This river is very shallow.

This river is very shallow.

Every Friday, I participate in an aquacise class at the pool.

I go jogging first thing in the morning.

It has become a habit for me to drink acai smoothies every morning.