Is there a difference to left handed ukulele and right one?

Yes, there are differences between a left-handed ukulele and a right-handed one. The most obvious difference is the strumming pattern. On a right-handed ukulele, you would pluck the strings with your right hand and on a left-handed ukulele, you would pluck the strings with your left hand. Another difference is the orientation of the strings. On a right-handed ukulele, the A string is on the top and the D string is on the bottom. On a left-handed ukulele, the D string is on the top and the A string is on the bottom. Finally, the sound hole is also located differently. On a right-handed ukulele, the sound hole is on the right side, and on a left-handed ukulele, it is on the left side.