Interested in Language
Can someone tell me how to add a signature to my profile?
You might not be able to yet. Some facilities are only available to users once they have made ten useful posts in sections of the forum designed to assist learners. Once you can use the facility, it's found in the section where you edit your profile. Remember that signatures cannot contain any links, website URLs, email addresses etc.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.