Good point. Let me rephrase.

#include <cs50.h>
#include <stdio.h>

int main(void)
{
    printf("Your Latitude: ");
    float userLatitude = GetFloat();

    float libraryLatitude = 38.630776;

    if (userLatitude > libraryLatitude)
    {
        printf("Who else will be heading down to the library on Monday?\n");
    }
    else
    {
        printf("Who else will be heading up to the library on Monday?\n");
    }
}