Giving the bf the clit

I want my boyfriend to go down on me or even finger me. we've been together for a long time and I feel like he's uncomfortable with my clit or either unsure. sometimes during foreplay we will run his fingers down there but nothing happens. I can't find the words to tell him nicely. I give him head all the time. Can't I get some love back sometimes. what should I say to him? or should I just show him how it's done? Lol