Pseudosciences are practises that masquerade themselves as science but have little or no scientific rigour or cohesion to them. They claim to be factual and scientific, yet do not adhere to scientific methodology and principles; notably the scientific principle of falsifiability.
It can be difficult for the non-scientist to discern whether something being claimed as scientific actually is or not. Fortunately pseudoscience has many recognisable features that are distinct from genuine science. These features are outlined below. Whilst not every feature will be common to every form of pseudoscience, any claimed scientific practise that displays at least some of these features is increasingly likely to be pseudoscientific.