Songs you could use this for:

Can't Help Falling in Love With You (Elvis Presley) - there is even a uke in this clip from Blue Hawaii

House of the Rising Sun (written by Leadbelly, clip is of The Animals)

We Are the Champions (Queen) 

The strum on the 2nd beat should, by rights, be a downstrum, but the up allows a more natural playing flow and a differentiated strum sound. Try all downstrums and hear the difference.