When the image come, type the character on the picture, press Enter on the keyboard. If it does not work after you press the enter key, change the input method to google keyboard.
For Images group CAPTCHAs. Type numbers which match the comment, Separate each number by ','
DON'T SKIP, OTHERWISE YOUR ACCOUNT WILL BE BANNED:
Touch the image, zoom the image from new window, touch back key to close it.
If you don't know the captcha, enter "?". It's the same with "alt + q"
Enter "none" if NO OBJECT FOUND