I too, have wondered about others feelings on this. Although I haven't joined in on anybodys "party" without an invite, I have had others join me. I don't mind others joining in, as long as they don't endanger the group or if I'm alone, me, and don't do things to attract unwanted attention.
I do signal for them to stop and introduce myself and discuss who they are and their likes when riding.
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Marty
I do signal for them to stop and introduce myself and discuss who they are and their likes when riding.
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Marty