Your question is very ambiguous....
Before I get on a boat, it is usually in my dive bag...
After I setup my gear, it is usually near or attached to my gear...
Once dive, dive, dive is declared, it is usually on my face...
Once I begin ascent, it is USUALLY on my face, but not always...
If/when I make a safety stop, it is USUALLY on my face... sometimes, I have shades on... then, it is not on my face, sometimes I prefer it on my forehead... and very occasionally, I lost it at depth... lol
Waiting for the boat pickup, it is USUALLY on my face, but sometimes on my forehead, and sometimes around my neck... It depends on the mood, the surroundings and the issues....
Once on-board the boat, it is USUALLY on my face, forehead, or neck... it depends on the mood, the surroundings and the issues...
For SI, it is usually attached to my gear, or in the mask bucket (rarely)... Can you update your poll to include all this?