Playboy nails it with this flowchart (at bottom).
I love this approach to educating men about catcalling. It's effective without shaming, and acknowledges and validates men's sexuality without letting them off the hook for shitty behaviour.
Someone on a related Reddit thread clearly described why catcalling can feel so threatening. She invites men to imagine what it would be like to experience the following:
- being catcalled by someone over a foot taller than them
- who starts bothering them while they were busy
- and then starts ordering them around or making sexual comments and won't go away
- and is much stronger and could easily hurt them
- and makes them feel afraid and ashamed
- and that this happens week in, week out
Check out the entire Reddit thread here: link.