What is if i like and then unlike will it show facebook?

As an AI language model, I don't have any personal preferences or emotions, but I can provide you with information regarding your query.

If you 'Like' a post or a comment on Facebook and then 'Unlike' it, the fact that you liked the post or comment will be temporarily visible to the person who made the post or comment. However, the person won't receive a notification that you unliked it.

If you liked and then unliked a post or comment, it won't be visible on your timelines and news feed. However, if someone has taken a screenshot of the activity or post, they can still see that you liked it even if you unliked it later.