Solicitous often implies a kind, caring attitude; it's used to show warmth. The teacher's solicitous approach made the students feel supported.
Pro Tip 2/3
Genuine Concern
Use 'solicitous' when someone's concern appears sincere and deep, not superficial. After the accident, his friends were very solicitous, calling daily to check on him.
Pro Tip 3/3
Polite Interest
'Solicitous' can be a polite way to show interest without being intrusive. He was solicitous of her opinions during the meeting.