The Albert Square newcomer, unveiled as the son of villain Derek Branning, sparks a romance with Lucy Beale next week.
"I'm absolutely rubbish with the ladies," he told The Sun. "I've never been a ladies' man or anything like that."
The young actor went on: "Joey's a lot cooler than me. He's more suave, he's better with women. I'm as far away from Joey as you can be.
"I'd cringe if I was a ladies' man. I think I'm probably a bit naïve for it. I'm probably underestimating the fans but I'm not going to be cashing in on it."
However, Witts revealed that he is already in a stable relationship, adding: "I've got a girlfriend now who I'm happy with - hopefully she's happy with me."
Meanwhile, the star admitted his apprehension over kissing co-star Hetti Bywater - Walford's Lucy Beale - revealing he ensures his mouth is "minty fresh".
"Everyone says you must love the kissing scenes but it is hard work," he added. "It's just part and parcel of the job and you'd be a bit of a twit if you got a cheap thrill out of that.
"I will admit I keep Trebor Extra Strong on me just in case. I always have mints before a kissing scene. It's only polite, you don't want people saying bad things about you.
"It's not just kissing scenes - you can be right in somebody's face threatening them, with spit flying everywhere or anything."