My experience so far is that I've gone out with our local "club rides". It all depends on the ride/ride leader and the participants how "social things get". Here is our club description, yet I feel if varies considerably depending on "who" is leading the ride and at what time of the season you ride
These go up on a calendar with maps/cue sheets so you know what you are riding beforehand for the most part.

RIDE RATINGS EXPLAINED

CATEGORY / TERRAIN:
DEFINITION

DESCRIPTION
Flat

No hills, possibly a small climb for a bridge or overpass
Minor Hills

Occasional hills with easy grades
Moderate Hills

Occasional climbs of 1/2 to 1 mile and/or short steep grades
Significant hills

Extended and/or frequent climbs, or very steep climbs


AVERAGE PACE (on flats):

The minimum average riding speed on flat ground with no wind and no drafting. This is not an indication of the average speed for the overall ride but an indicator of the speed that riders should be capable of maintaining on flat portions of the ride. Slower and faster riders are welcome on all rides as long as they are comfortable using a map and fixing a flat tire on their own in case they get separated from the main group.

PACE
SPEED

10-12 MPH


Easy/Beginner. Frequent stops.
12-14 MPH

Social pace. A few stops.
14-16 MPH

Moderate pace
16-18 MPH

Brisk pace
18-20 MPH

Fast pace
20+ MPH

Strenuous pace


GROUP (ride style):

STYLE

DESCRIPTION
Group

No one will be left behind. Assistance with flat tires and other minor mechanical problems. Maps will be provided unless noted in the ride description.
Re-Group

Re-group at specific points on the ride route. Riders will spread out. Assistance with minor mechanical problems may be limited. Ride leader will wait a reasonable time for riders at re-group points. Maps will be provided.
Non-Group

No planned re-group points. Riders will spread out. Riders should be self-sufficient. Maps will be provided.


It has been incredibly helpful for me as a novice to have this info BEFORE charging out there on what I *think* I can do