This Lora was trained on 60 images, with some trial and error you can get the effect of someone blowing smoke from their lips. It's not perfect but as a first Lora creation it came out somewhat useable.

While the tags include smoking / vaping. At lower weights this does not seem to introduce cigarettes or a vape to the image. The intention was purely for the smoke effect. Increasing the weight seems to add more smoke but also vaping devices. If that is undesired, you can try occupying the hands by adding something like: hands on thighs.

Tags that seem to help:

smoke, smoking, vape, vapor, vaping