Test a small hidden area first
Scrape off loose glue with a plastic scraper
Warm the glue with a hair dryer
Wipe softened glue with a damp cloth
Use warm soapy water for water-based glue
Use vinegar for mild adhesive residue
Use rubbing alcohol for stubborn residue
Use adhesive remover for tough glue
Apply remover with a cloth or sponge
Let it sit briefly
Gently scrub with a non-abrasive pad
Wipe the wall clean with water
Dry the wall with a soft cloth
Repeat as needed
Repaint if the wall finish is damaged