When you say don't do it too often I don't really think that's an issue to be honest 

The way I see it is that you cam approach and close set after set all having the pros and cons but why not try somthing different if it's somthing that you enjoyed do it again 

To get a number or a kiss close is simple when you do your normal shit experiment as much as you feel like experimenting if a bear ideas jumps to mind don't hold back give it a go