Respect the block and do not try to bypass it
Give them space and stop contacting them through other accounts or numbers
Reflect on why they blocked you before attempting any future contact
If you must communicate for an urgent practical reason, use one appropriate, non-invasive channel if available
Keep any message brief, calm, and non-demanding
Acknowledge their boundary and apologize if needed
Do not send repeated messages if they do not respond
Do not ask mutual friends to pressure them
If the block was about conflict, wait until enough time has passed before trying again
If contact is necessary and appropriate, use a single respectful message asking whether they are open to communication
Accept silence or refusal as the final answer
Focus on moving on if they do not want contact