Possible Clues:

• Phone everyone, be involved to stir a distant memory?
• Contribute to ding-dong and stir the memory
• Draw attention to your bike - that might jog someone's memory
• Ex US president on call -- lines sound familiar
• Sound vaguely familiar
• Play church instrument – does this sound familiar?
• Jog one's memory, as it's something to do for notice? On your bike!
• Barge in rudely, having left twice — sound familiar?
• What visitors do sound familiar?
• Pole in Baltic port with limited beauty -- sound familiar?