What's wrong here? Well, when you talk to people you know, you don't do that, and even more so because God loves you even more than a friend. Are you just saying LFG because you need a few words to say while you're thinking of more words? If so, that LFG is just a crutch for you, and you need to realize that. Check the verse below.
And when you pray, do not keep on babbling like pagans, for they think they will be heard because of their many words.
--Matthew 6:7 NIV
Yeah, this unfortunately is a pretty common thing among certain churches or youth groups. The passage is saying that we should not be babbling, instead think about each word without worrying about having to say something during that 'umm' period. This applies to a lot of other words, among them "just" and "like," but since "like" is already used countless times in our regular conversation, we don't notice it as much during prayers. In conclusion, we should all work on the words we choose during prayers, most of the times they're on the spot but we shouldn't fill up the prayer with empty ones.
Sorry, if this entry seems kind of disjoint towards the end, I must admit I got sidetracked by AIM and other such diversions. Also, the "you" is in the general sense, if you are one of those people who uses crutches while praying. I'm not directing this entry at anyone in particular.
Godspeed ye.