Thanks William... I've been looking for another method to teach my birds how to wave with their wings... gonna teach my parrotlet that one next.
I've also taught some of our birds to "give me 4" by touching one of their feet, they'll lift their foot when you touch it, so say "give me 4" when you touch the foot and reward when they lift it, then stop touching their foot and they'll catch on to what you're asking them to do. then say "give me 4" and when their foot is up, touch the bottom of their foot, it won't take long before they'll lift their foot and touch your finger when you say the command.
Budgies are also very intelligent so they'll catch on to these tricks about as fast as a parrotlet will, We have budgies too but they're not tame yet so I'm still working on building up their trust