United States international Bradley has joined Villa on loan from Borussia Monchengladbach for the remainder of the campaign.
Bradley said: "I am a midfielder who likes to give everything he has for the team.
"I can attack and defend and impose myself in the centre of the field. I will do whatever it takes to help the team be successful.
"When you look at football nowadays, to have midfielders who can get forward, get in the box and get goals, that's important too and I try to do that.
"I have watched all sorts of games from when I was little and watched midfielders obviously.
"The one I looked up to was Roy Keane and the job he did at Manchester United.
"The way he was able to be the engine and heart of their team and help them be successful was something to aspire to."