I am left handed and I always use my left thumb to scroll. Never really thought about it until I opened this thread and I realised I was scrolling with the left thumb which is automatic to me.
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I'm right handed. I like to scroll with my left thumb, though. I will hold my BB in my left hand when I am scrolling with my left thumb. I got used to holding phones in my left hand so I can hold a pen in my right hand if I need to write something. If I am texting or emailing I hold the BB with both hands and type with both thumbs.
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