The only thing I like to see from my opponents is conceded putts within 20+ feet...of course, I certainly don't reciprocate....:)
Other than that, simply understand that Alternate shot is often about the social aspect first and the golf second....be friendly, chat a bit...as Courteney said, you generally have time to say "nice shot" , "very nice shot", or "you really suck, have you ever thought about switching hobbies?" or whatever. Most players use the acronyms though.
The one thing that bothers me a bit is when the teams are stacked...when I set an Alt game (and I often do), I try to balance the teams, so it generally becomes a close match...ergo, more fun for both teams, rather than one getting blown out
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