That's sidewalk rage and no, I don't. I walk around then and say "excuse me". If I can't walk around them, then I announce "EXCUSE ME!" really loudly and walk between them so I can walk at my normal pace. And if I'm not in any rush, I'll walk slowly behind them and act like I'm part of their group until they get uncomfortable and move out of my way, even joining in their conversations if I have to, to get their attention.