One of my characters uses slang the whole way through my novel with the result that I have a lot of 'misspelt' words such as 'runnin' 'shootins' 'killins' - ie he doesn't pronounce the 'g'. Also for example - 'I'd like ta think' and 'yer' for 'your'.
Is it normal to make them stand out from the main body of the text (Eg italicise), or simply leave them as they are? From my reading experience, the likes of Roddy Doyle and others haven't taken any steps to distinguish slang from correct usage.
This really confuses me. Any help appreciated!