The beauty of "jamming" (playing with others) is when you're all on the same page. You can look at the guitarist and know a change is coming. When you're all on the same page it is such a high. To get there only takes time. Everyone above is right... you don't need to be fancy, do killer rolls, etc... just know what beat you want and keep time. Some new and even experienced guitarists and bassists speed up from time to time. It's your job to not follow them, but keep them from racing ahead. That's hard sometimes when you're playing with (following) their rhythm. I recall falling into that trap many times in the past.
A good way to learn songs, imo, is to air drum along with them. You'll hear every strike. Play along with the tune once you can confidentially air drum the tune. Then try it drumless. AC/DC is quite simple. So is Live. Actually, there's a bunch of "easy" tunes in all genres.
The most important thing is to just have fun. "Feel" the music. Mistakes are no biggy. Everyone makes mistakes. Laugh at them (mistakes). Learn from them.
Also, I'd think you may need to mess with crosstalk settings a bit, as you'll be adding vibrations from the other instruments.
I'm envious. I remember when I first played with others. It's been too many years since then, and I definately miss it.