If he laughs at you when you ask certain q's hes a cheat

When you ask him a question look at his reaction if you ask if he liked or had been wit a woman he works with or best mate if he laughs at the fact he is for sure a liar,,,if he puts his head down and not able to look at you he,s a liar,,,if he washes himself when he comes in straight from work he did something if he was hiding it...if texts from other girls like exs he,s hidding sumthing