You've made plans to visit a friend that you haven't seen for a while. You say this to them in anticipation.
I'm looking forward to seeing you.
This is a polite expression for saying that you're excited about something that's going to happen. But it doesn't sound very strong. If you really want to sound excited about it, try "I can't wait to ___"
"I can't wait to see you."
You can also add adverbs like "really" or "so":
I'm so looking forward to seeing you!
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