Prince George showed off his walking skills on Father’s Day while his father and uncle took part in a charity polo match the royals attend annually.

According to Today, Prince William, Duke of Cambridge, and Prince Harry were taking part in a polo match for charity in Cirencester, England. While they played, Prince George, who will be one next month, practiced his walking skills with mom Kate.

The polo match Prince William was playing in was to raise money for a charity called Centrepoint, which provides assistance to the homeless.

The Daily Mail reported that at the Jerudong Trophy match, which is an annual event, the brothers played against each other on different teams.

While watching his father play, Prince George played with a polo mallet, attempted to kick a toy ball, and also took a sip of his father’s water when he came over during a break.

At one point, the little prince even tried to crawl across the field where polo ponies were located, but he was quickly retrieved.

Queen Elizabeth also reportedly took in a polo match, the Cartier Polo Cup, which was held in Windsor Great Park.