No offence intended.
Load of people (most actually) just give their dogs new toys all the time and leave them all over the floor, in the dogs basket and then wonders why the dog gets 'bored' of the toys and buy more.
It's best to 'own' all the toys yourself and then when you want to (which should be often obviously) get out a toy and begin to play with it yourself, your dog will be desperate to join in, play fetch, hide and seek, tug, whatever, but when you want the game to end make sure you victoriously take repossession of the toy, play with it yourself for a few seconds (throwing it up in the air and catching it is fine) seem really pleased to have won and then while the dog is still looking, put it away.
In your dogs eyes you will seem like a confident, victorious winner and someone to be respected and in the same vein, trusted.
Plus every time you get a toy out your dog will be desperate for a game. All to often you see owners pick up a toy off the floor and invite the dog to play, the dog can't be bothered as as far as it is concerned it already 'owns' the toy but is prepared to let you play with it if you wish.