I tanked my first heroic this weekend! My first time tanking on my Warrior too (aside from two or three attempts in the early 60s.)
Actually, 1 failure and 1 success. On my first queue-up I got put into Throne of the Winds. I just could not keep aggro on groups. Thankfully someone gave me pointers after our 4th wipe. I started doing a little better, then I oopsed by charging ahead without the healer. My *** was promptly kicked.
2nd queue-up - HHoO. I joined
in medias res in the room with the 4 elemental dudes. I proceeded to tank the **** out of the place (of course we just went straight from P'tah to Ra, skipping all the others, but still...). I did wipe a couple times when Ra made the whole floor glowy, but we finally overcame that and I completed my first heroic and gained a little more confidence as a tank.
Also the Crocolisk daily came up on Old Man Barlow, so my three highest characters each got a baby croc pet.