Related Clues:

• Sympathize with
• Listen and pay attention
• Act as a judge
• Take testimony from
• Be attentive
• Be informed of
• Learn about
• Learn
• Learn in passing
• Find out
• When doubled, a shout of approval
• 'Did you ___ that?'
• Use one of the senses
• Learn (of)
• When repeated, a cry of approval