I pretty much kept to myself in the gym, trying to avoid all the distracting conversations. One regular--younger and stronger than I, for sure--noticed that I was focused AND the only other regular in our time slot who trained legs on a regular basis. So one day months ago he asked if I wanted to partner up on leg days.
We're both seeing great progress in strength and size of legs. He's encouraged me (just because he's that much stronger than I) to push harder and heavier; I've pushed him to do rock-bottom squats, front squats, and tomorrow is our second time with Bulgarian Split Squats.
Having someone there to give you the confidence to "go for it" is invaluable to progress.