What extra curricular classes will increase chances of getting into medicine?

- Extra language, like Chinese (that's highly regarded currently)

- Sign language course

any other courses that would show good communication and commitment

None - no one cares if you like horse riding or football or playing the oboe, what's most important is what you get out of your extra-curricular activity.

Do you actually want to learn first aid or Chinese? If so, great, go for it. But don't be under any false impressions that you're increasing your chances of getting into medical school, because you're not. Simply saying "I did X" doesn't mean anything, you need to explain why it's important to you as a person and why you think it's important when applying to do medicine.

None - no one cares if you like horse riding or football or playing the oboe, what's most important is what you get out of your extra-curricular activity.

Do you actually want to learn first aid or Chinese? If so, great, go for it. But don't be under any false impressions that you're increasing your chances of getting into medical school, because you're not. Simply saying "I did X" doesn't mean anything, you need to explain why it's important to you as a person and why you think it's important when applying to do medicine.

Well obviously I'll add why those extra curricular activities helps me in my personal statement.
And don't extra curricular activities turn you into a well rounded person?

yeah they do. There will be loads of academic people with loads of A*s etc, but often they have no communication or social skills - which is obviously essential in a caring job. So this extra curricular should show you are both academic, practical and well rounded.

The best of look to you