When he heard the shout of "this is official DMLE business!", Remus looked up from his tea with a start, reaching for his wand. He'd learned long agao it wasn't the best idea for a werewolf to be on the scene of an unfolding investigation. But when he recognized the figure of Tonks waving about her badge, he found himself grinning. How like Sirius to use an excuse of authority to get what he wanted. More than once, Remus had found his prefect badge missing only to later discover it amongst Sirius' things.
Remus watched the scene unfold with a sort of bemused horror. He lurched forward as Tonks tripped with the stack of beverages, but was relieved to see she managed to recover. Not wanting to keep her from her business, he watched her head for the door only to catch her eyes.
With a half-wave, he set down his tea cup to greet her, only to watch her toss the break-time treats up in the air. Wincing as an extra-large cup of wood-fairy mead splashed all over the disgruntled wizard behind Tonks, he gathered his cloak hastily, preparing for the inevitable quick escape they might need to make.
"Wotcher, Tonks," he said, siding past her to the aid of the drenched customer. Performing a quick drying charm, he extended a hand to Tonks.
"Oy, give me five sickles," he said, taking the money and pressing it into the man's hand.
"So sorry. Get yourself something else on us later."
Turning back to Tonks, he tried not to laugh at the fact she'd barely realized what she'd done.
"Just getting some tea," he replied to her initial question. "About to head home, actually. Just begged out of work for the rest of the day."