He was drinking coffee as usual.

He was carefully observing the surroundings.

I don't know how to solve this situation.

He is always smiling.

He has sensitive skin, so he needs to be careful when choosing cosmetics.

He is very sensitive to sound.

Toshi is always alert to his surroundings.

He showed a quick response.

His quickness is one of the reasons for his success in business.

Toshi is my best friend.