There are Pirates supporters who ask Foster for pictures whenever they see him and he is not quite used to that yet, having gone from being a development player to a first team player within the blink of an eye.
Just last year Foster was playing in development tournaments such as the Discovery Walter Sisulu Soccer Challenge in Soweto and he is now playing in the first team for one of the biggest clubs in the country.
The 17-year-old striker is seen a future star for the Buccaneers, who need someone to bang in the goals regularly.
"It was a big shock for me [to be promoted] because I had just come back from England with the Under-18 national team and we had just landed in South Africa. I was told I have to play a friendly with the first team and the next day I was signed. It was madness," Foster said at the launch of the Discovery Walter Sisulu Soccer Challenge on Monday.
"It’s a dream when people call me wanting to take pictures. I am not used to it and it’s quite weird. Hopefully I can let this go and try focus on the football.
"I try take everyone as a friend and not a fan and I also try keep level headed because these are the people who help you in your success. If you try be bigger than them, then the game will eat you.
"I have supported the club since I was young and I hope I can help the team in whatever we are trying to achieve this season."
Foster was recently reported to have travelled to France for a trial with Ligue 1 club Monaco, but he did not want to comment on the matter.
"I don’t know anything about that. I can’t talk," he said.