Never tip tuk tuk drivers in Phuket now because of the tuk tuk mafia, last time I dad to get a tuk tuk, because friends were physically exhausted it think it cost 150 baht to go to Deevana Spa from Jungceylon and they had the hide to ask for tip, i said, no you already include in fare.
Restaurants at least 20 baht up to 100 depending on service. Massage girls good girls 50 baht bad girls 200!!!