Hello @sophfia and welcome to the community! Every community member will get the opportunity to have a signature once they get four stars at 250 points and 200 posts. You currently have 25 posts so keep being active in the community and you'll get to 200 posts and 250 points in no time then you'll be able to add your signature.
Hello @sophfia and welcome to the community! Every community member will get the opportunity to have a signature once they get four stars at 250 points and 200 posts. You currently have 25 posts so keep being active in the community and you'll get to 200 posts and 250 points in no time then you'll be able to add your signature.