I have attached a sample 14% range, from the equilab. This might not represent what 14% means for a different player. This one set mines and plays broadway cards only. You need to play with it yourself. It also helps to look at someone's stats (if you review a hand) and what they have shown down and see if your constructed ranges include the hands they are showing up with.
Edit: For live play, where I don't have stats, I look at how many hands people play and the kinds of hands they show down. Then I build up mental groups of hands they are likely playing. e.g. pairs, suited connectors, suited one gaps, all ace-high hands, any two cards 10+, etc. That works also. It's just a habit. Try and place people on groups of hands, while you play, see what they show down, and compare that to what range you thought they probably had.