Three women have upstaged an anti-abortion protester in central Hobart by holding up competing signs that read "have a lovely day" and "sorry you had to see that".

Last week, police dropped charges against Brisbane man John Graham Preston for failing to comply with the directions of a police officer during separate protests outside two Hobart abortion clinics.

He has since continued his anti-abortion protests.

Jessica Gulliver and two other women held other signs in front of Mr Preston's protest this morning.

Ms Gulliver said they want people to ignore him.

"Our signs are trying to spread positivity instead of negativity which is what the other signs promote," she said.

"Today is World Suicide Prevention Day so we're just trying to make people feel happy, it's on their way to work, if we can give them a smile, excellent."

But Mr Preston said the women were not respecting his right to freedom of speech.

"I'm holding up a sign that says 'who cares about human rights'," he said.

"They've spent their morning holding up a big piece of calico in front of me, and umbrellas, so that people cannot see that [message], who cares about human rights."

"I mean what's their problem with asking that question?"

Ms Gulliver said she has a moral objection to Mr Preston's signs but that is not what the protest was about.

"We're obviously pro choice but that's not why we're here. We just really want to spread the word, just ignore him, just ignore him, smile and be happy," she said.