As a member who often visits models who have a slow room... have always found tipping for some kind of show works best
, even if only in lots of 10 tokens. It's all about movement and momentum, keeping a good thing going (whatever your thing happens to be), we want that too.
In reality making this effortless, unforced, and natural is something few models can do consistently, that is why top models do so well, they have worked at it.
I think many models have good days when it all comes naturally, but on days that it doesn't they can't find a way to keep things moving. On the slow days think of them as chances to get better as a model. The challenge of maintaining your mood, improving your patience, coming up with new plans, and pushing yourself into that effortless natural place where you know that you can do well.
As for ideas, I have seen models reinvest with a perv account to some effect, sometimes a few tips can get things started or keep them going.
Emotionally shaking up a room can work too, one model I know likes to kick stuff around her room, another just let's the tears flow, some get mean to members, some get funnier/ weirder when stressed, I have even seen ignoring the room work well, the more manipulative or self abusive stuff you should avoid, but it can be entertaining to watch.
A third option may be to switch from a pvt/ group offer to countdown.. or vice versa. Sometimes a change can help things move along, peak some new passion for what you do.
Lastly always thank your tippers/ spenders, nothing will slow your room down more than members seeing other members unappreciated for their spending. Even models who hate me tipping them, will call me an arse in some way for doing it, making me (and others) want to tip them again.