Another technique is to bid like u have a couple oil rigs in ur backyard lol that discourages peeps often I noticed..
I don't do surveys or videos or download apps ect, I bid at the beginning always never at the end, give the impression it's more important to u to not lose bid bc of being a sec too late, and that u have tokens like cressus.. Ofc after 3 rounds if hes not givin up let it go, and if u see him bidding like u way be4 timer ends also is a sign to cut the loses