Related Clues:

• Focus obsessively
• 'Concentrate!'
• Concen-tration
• Concentrate one's attention
• 'Pay attention!'
• Cynosure
• Advice for the easily distracted
• "Pay attention!"
• Not just look
• Focus intently (on)
• An automatic camera can do it for you
• Centre
• Obsess (on)
• Obsess
• Adjust, as a telescope