You cannot bid for scout players. Only 5* players and below dat. For example look at one of your friend's squad. Pick a player who is 5* for you and you will see 'bid for player' sign or something like that. You can offer the owner some money + tokens. You can only offer money too, but generally managers do not accept that offer. Btw, you should pay 7 tokens (minimum) to make a bid for a managers player. I mean you should pay some tokens for nordeus, and the manager.