All sorts of minor grammatical quirks due to living with a deaf person for the best part of two decades and not being a complete arsehole. Off the top of my head:
"ACK" (in the TCP/IP sense) instead of 'yes' or 'okay', because the hard consonant is easier for barakta to hear. Sometimes I'll use "yes yes" as the opposite of "no" when forced to communicate by voice when the signal-to-noise ratio is poor (eg. on a telephone, or between front and back seats of a car), though dropping into sign language is more usual.
"PING?" (in the ICMP sense) as a means of getting attention[1] or for working out where someone is[2]. Over the years this has extended to use as a request for acknowledgement at the end of a possibly unheard sentence, as in "Put the kettle on. ...PING?"
"Stop. Don't do that because..." where hearing people would jump straight in with the polite waffle, because by the time barakta has decoded the speech, she'll inevitably have done whatever it is I'm asking her not to do. Sometimes a non-verbal interruption isn't warranted, but an imperative preamble is.
General explicit negotiation and acknowledgement of TEH PLAN before commencing a joint task, because as a general rule barakta can hear or she can do. I'm sure this comes across to hearing people as rude/patronising/bickering, where it's a proven strategy to reduce frustration and general FAIL.
Similarly, a tendency establish context early and often, and occasional lapses into object-subject-verb word order for emphasis.
General use of BSLish embellishments and feedback to ostensibly English conversations. Hand-nodding, cheek-puffing and such.
Occasional vowel-sound inconsistencies. I've pretty much abandoned my childhood RP-with-Norn-Iron-corruptions vowels in the interests of intelligibility and reduced piss-taking, but occasionally I forget how to say words.
[1] I know technically this should be SYN, but that's less audible.
[2] Appropriate responses might be "in the bedroom" "coming" or "right behind you", not the "I'm in here" that relies on stereo hearing.