If you don't have RL friends that play, join a guild. If the guild sucks, join another one. You can still 'play solo' while you're in a guild, the difference being that when you DO want to do group content, there are people you can easily reach out to to play with, and you can add the real gems to your friends list to make grouping up even easier later.
Hell, with cross-server groups, it's even easier these days. I usually run CMs with someone who doesn't even play on the same server, but met them through the in-game group tool. I added them to my friends list and now they've done several medal runs with us.
I never understood the mentality that if you don't have RL friends playing you don't have people you can group with. I've never played WoW with any of my RL friends and found all the people I play with through the various guilds I've joined. I raided back in Wrath and Cata, and rejoined for Warlords. Of course my old guild didn't exist, so I found a new one and picked back up where I left off.
There are so many guilds recruiting on my server that I'll never run out of options if this one turns out to suck for some reason. If your server lacks options then it's really worth it to server transfer to one with more population and more choice.
Hell, with cross-server groups, it's even easier these days. I usually run CMs with someone who doesn't even play on the same server, but met them through the in-game group tool. I added them to my friends list and now they've done several medal runs with us.
I never understood the mentality that if you don't have RL friends playing you don't have people you can group with. I've never played WoW with any of my RL friends and found all the people I play with through the various guilds I've joined. I raided back in Wrath and Cata, and rejoined for Warlords. Of course my old guild didn't exist, so I found a new one and picked back up where I left off.
There are so many guilds recruiting on my server that I'll never run out of options if this one turns out to suck for some reason. If your server lacks options then it's really worth it to server transfer to one with more population and more choice.