I felt weird talking to her at first too. I can't say when, exactly, it stopped feeling weird, but it does become a natural thing. She's 12 months now and I'm always talking to her or around her. Keep in mind, bathing her in language doesn't mean you have to talk to her all the time. Talking to anyone around her still counts.
Now, I do a lot of explanation and narrating and redirecting with my language. If I'm going into the kitchen to prepare dinner, I'll say "Mommy's gonna go in the kitchen, do you wanna come?" and I'll wave my hands in the direction of the kitchen to see if she'll follow. If she doesn't, then I say "Okay, I'll be in the kitchen, you can stay and play." And I'll periodically peek my head back into the room and comment on whatever she's doing. If she follows me, then I'll spend my time telling her what I'm doing or asking her to stay out of the trash can or asking her not to climb on the dishwasher door or asking her if she wants a bite of whatever I'm making, then I'll tell her what it is I'm feeding her and ask her if she likes it, is it yummy, Mommy thinks it's pretty yummy, etc, etc, etc...
You really do get the hang of it. Small talk, singing, reading to her... it all seemed strange to me when she was a newborn. But now, I can make a song out of anything and have one sided conversations until I'm blue in the face. Has it made her talk any earlier? Nope, no consistent words coming from her yet. But she is very expressive and loves to "talk" with me.
