Hitchhiking in Bali is like hitchhiking in a 3rd world country that is a top destination for 1st world tourists.
First, it is very hard near the touristic hotspots. Kuta and Ubud for example. But away from there, it works pretty nice.
Basic rules:
- The thumb sign doesn't work. Use your imagination. The "slow down" sign works, pointing your direction is cool... Surprise them :)
- If you're not Indonesian (or maybe Malay), all cars are taxis. Not only those that have a "taxi" sign, that are already legion. Even if you're not white, they'll spot you like a grease stain on a wedding dress. So, no point hitching the cars. Settle for the pickup trucks and trucks.
- Sometimes they will ask you to pay after you're already in the vehicle. Since there is no highway, just ask to get dropped off.
- Offers to contribute financially are not frowned upon. If you're travelling, you're probably 10 times more resourceful than them. And they know it.
- If you're lucky enough to find a tourist or an expat that has space in his car, he is very likely to give you a ride. There is a sort of tacit solidarity between tourists and expats. That is if you don't mind riding with them...
- Rain starts without warning and lasts for an unpredictable amount of time. If you're carrying electronics, seal them in a plastic bag.