chepar
Contributor
Xanthro:In the second on, there were two divers and the DM, so I worked on the assumption that the other diver and I were buddies, and I told him at the surface that I'd stick close to him.
In the second dive, I saw myself as the other divers buddy, and I think I did ok, except I think I should have inquired as to his air.
On my very first dives after being certified - and not knowing any better - I also did a couple of dives with an operation that also did discover scuba on the same trip. I learned real fast from that experience to only do dives with operators whose trips are only for certified diving and not any other activity. I agree with yknot - it wasn't a dive trip, per se - and what you experienced confirms that.
Also, never assume about your buddy situation. You should always make sure that you have a specific buddy - and that person in turn knows that he/she is your buddy. Go through your buddy checks and discuss the plan. Diving in a group is ok, but within that group, make sure you have your buddy.
Sounds like you were diving in a group without a specific buddy - while you assumed or "saw yourself" as someone's buddy, apparently the other person didn't. I've been assigned plenty of buddies that I've never met before - you have to have "the talk" with them beforehand and make sure you're both on the same page before hitting the water.