OOCMakes more sense for him to have only heard of the false name, if Fallon's only used her real name with one other person. I'll change it, make things a bit more realistic. 
Bitzer called to her dog, leaving the tavern shortly after speaking with the other man. Sisas waited only a moment before following, speaking to Rikit in soft snake-tongue to instruct the animal to stay by his side. Outside, there were few people around to camouflage the Dhani, and he cursed under his breath, having to keep a slower pace, staying farther behind his quarry than he would have liked. Several times he was almost caught and had to duck into the nearest open niche, but the gods must have been smiling on him that day, for he made it to the apparent meeting place without being detected.
Now came the trickiest part-- keeping Rikit in one place, and shifting to his viper form in order to get as close as possible. Sisas did not know if the dog would stay on a command alone-- Rikit was well-trained, but he and his owner were not bonded enough for that to be a viable option. A glance around revealed a length of rope, and Sisas sighed in relief, taking it and fashioning a crude collar and leash in order to tether the dog to a nearby pole.
"Stay," he instructed firmly, holding one hand out, palm-down. He waited for a moment before nodding in satisfaction and stepping into a corner to shed his clothes and fold them quickly-- it was always annoying to change into full snake-form while fully clothed. The pile of clothes placed near Rikit-- with any luck, should anyone come nearby with the intent of stealing his clothes, the dog would discourage that notion.
"Guard," was the last thing the Dhani said before cracking his neck and reaching for the shift. His skin shrunk, hardening and cracking into the scales that would cover his body as his limbs fused together-- it took less than a full bell to complete the shift, and when it was done Sisas was curled around himself on the ground, dark red and gold scales shifting as he lengthened, tongue flickering to gather the surrounding scents. Rikit was watching him curiously, and Sisas hissed out another
"Stay," before slithering closer to Bitzer.
A few moments' search revealed a satisfactory perch from which to liste-- Sisas would have preferred to be closer, but there were no materials nearby that were close enough in color that he could have used them to hide within. He settled for a ledge over the heads of the woman and the same man that had spoken to her in the bar. The man greeted Bitzer with a comment about how she seemed lively for a dead person, and Sisas perked up a bit at that.
Interesting...Bitzer seemed impatient, and Sisas edged himself just a bit closer to the precipice in an effort to hear better. The man wanted Bitzer to join in a 'chainer hit', but Bitzer wanted no part of it-- because of logistics, it seemed. She made no mention of not wanting to join simply because she was uninterested, but rather her stated reasons lay behind not wanting to get caught.
Smart girl, Sisas thought, chuckling a bit to himself as he continued to listen; his job was to gain information, and that was what he was going to do.
