3-4 point low approach, two-space high pincer, tenuki

kick  

If White ignores the two space high pincer, it's natural to kick and attack.

attach  

The attachment creates complications. In general, attaching to a weak stone is not recommended. Arguably, the punishment for playing elsewhere is not severe enough here.

attach (2)  

In this variation the original pincer seems to have lost its purpose.

Keima  

Playing without kicking first allows White to settle easily

kick and tenuki again  

In the opening, White can choose to ignore again. Black has now invested a net 3 stones in this area, and still there's aji at a.