Agree with FaeryBee above.
Foraging is also a really good thing for budgies, even if it's something as simple as sprinkling some seed on a piece of clean paper along with some shredded paper or Timothy Hay so that they have to hunt/peck.
Together : Visual Enrichment, Sound Enrichment
1. Peek-a-Boo - Cut a 8 in by 8 in paper (double folded page to make it more solid). Put the said paper near your face with both your hands. Lower it to reveal your face. Says ‘Peek-a-Boo’
2. Flying ‘Wings’ - Open both your palm. Left thumb touches your left cheek. Right thumb touches your right cheek. Flap them like ‘Wings’. Make any sound you like as you flab your ‘Wings’
3. Snap Fingers - Snap your left fingers. Says ‘Snap’. Snap your right fingers. Says ‘ Snap’. Put on a happy face as you snap.