"Always a pleasure, new company." Aziraphale took the hand, and despite the slightly uncomfortable edge the feel of the other being had inspired on his mood--familiar, but foreign; a family member that lived in another country and had only been related to you in stories--shook it warmly. The blindness concerned him for a good, long moment when he noted it as being outside the realm of his recovery. Not that it seemed she needed it recovered to make her way comfortably around.
Crowley made his entrance as Aziraphale was rounding the table to hold Elaine's chair out for her, and gave the demon his very best Look for being so thoroughly himself within the first five seconds. He liked making a good impression on new aquaintences, so long as they weren't trying to buy anything, or talking about real estate values.
"That's a bit hasty, for a casual luncheon" He noted peaceably, ignoring the damage the once-and-former-Sherry had given his sobriety earlier. "If something comes up that needs a decision made, trust, my dear, that I'll make sure you're thoroughly drunk before you weigh in."