The pink fluid is most likely transmission fluid.
The 2001 Ford Focus has a 5-speed manual.
On a 2001 Ford Focus : The brake fluid reservoir is used for the brake and clutch systems
ESD-M6C57-A ("Super DOT 4" for MTX-75 transmissions or 'manual transmission' models) Source: Ford Focus 2001 User's Manual
With your eyes.
The 2001 Ford Focus transmission range sensor is located on the side of the transmission. The sensor will be on the left-hand side of the transmission.
How much transmission fluid does a 2001 ford Taurus need
Need to know what the question is.
I do it at about 50K miles.